Details of the Researcher

PHOTO

Kenichi Kamiya
Section
Tohoku University Hospital
Job title
Assistant Professor
Degree

  • Ph.D. (Shiga University of Medical Science)

  • M.D. (The Jikei University of School of Medicine)

e-Rad No.
30961784

Research History 2

  • 2026/08 - Present
    Toronto General Hospital, University Health Network　Division of Cardiovascular Surgery

  • 2025/04 - 2025/06
    日本胸部外科学会 JATSフェローシップ　Division of Cardiovascular Surgery, St. Michael's Hospital/Toronto General Hospital, Toronto, Canada

Education 3

  • 滋賀医科大学　大学院医学研究科博士課程 高度医療人コース

    - 2025/09

  • 高知大学大学院ヘルスケアイノベーションコース　履修証明プログラム

    - 2023/03

  • The Jikei University School of Medicine

    - 2007/03

Professional Memberships 7

  • 日本心臓弁膜症学会

    2025/11 - Present

  • 日本循環器学会

    2021/04 - Present

  • 日本冠疾患学会

    2013/11 - Present

  • 日本血管外科学会

    2009/03 - Present

  • 日本心臓血管外科学会

    2009/03 - Present

  • The Japanese Association for Thoracic Surgery

    2009/03 - Present

  • 日本外科学会

    2009/01 - Present

︎Show all ︎Show first 5

Research Interests 8

  • 物理シミュレーション

  • Vesalius3D

  • 冠動脈バイパス

  • Computer Fluid Dynamics

  • 医用画像工学

  • Aortic valve

  • Computer graphics

  • Cardiac anatomy

Research Areas 4

  • Life sciences / Cardiovascular surgery / Computational Fluid Dynamics (CFD)

  • Life sciences / Medical systems /

  • Life sciences / Biomedical engineering /

  • Life sciences / Cardiovascular surgery /

Awards 10

  1. 最優秀演題賞

    2025/12　第15回日本心臓弁膜症学会

  2. 滋賀医科大学外科同門会 奨励賞

    2025/01

  3. 日本胸部外科学会 2024年度JATS Fellowship Award

    2024/04

  4. 優秀演題賞

    2024/04　第124回日本外科学会定期学術集会

  5. Best Abstract Award

    2023/10　The 76th Annual Scientific Meeting of the Japanese Association for Thoracic Surgery　Integrated volume and surface graphics for facilitated measurement of cardiac anatomy

  6. SUMS Symposium Best award

    2022/12　Integrated volume and surface graphics for facilitated measurement of cardiac anatomy.

  7. SUMS Symposium Best award

    2021/12　Shiga University of Medical Schience　Validation of virtual reality imaging accuracy of dynamic, functioning heart valves using an ex-vivo porcine heart.

  8. SUMS Symposium Best award

    2020/12　Shiga University of Medical Schience　A virtual reality imaging system potentially useful for surgeons

  9. 第23回 日本Advanced Heart & Vascular Surgery/OPCAB研究会 最優秀賞

    2018/07

  10. Young Investigator Award

    2016/10　Accurate anatomic visualization of a patient-specific aortic root model by three-dimensional printing prior to aortic valve surgery

Show all ︎Show 5

Papers 36

  1. Validation of Virtual Imaging of a Dynamic, Functioning Aortic Valve Using an Ex-vivo Porcine Heart International-journal Peer-reviewed

    Kenichi Kamiya, Yukihiro Nagatani, Shinya Terada, Yuji Matsubayashi, Naoshi Minamidate, Noriyuki Takashima, Taihei Fujii, Susumu Nakata, Tomoaki Suzuki

    The Annals of Thoracic Surgery　114　(1)　334-339　2022/01

    Publisher: Elsevier BV

    DOI： 10.1016/j.athoracsur.2021.11.070 　

    ISSN： 0003-4975

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    PURPOSE: To investigate a virtual reality imaging system in terms of visualization accuracy and appropriate orientation when displaying cardiac anatomy, we used an ex-vivo model enabling direct comparison between reconstructed three-dimensional visualization of intracardiac structures and real-time visual images. DESCRIPTION: We established a systole-diastole platform using a swine heart activated by an external mechanical pump and reservoir, allowing simultaneous acquisition of endoscopic visual and computed tomography (CT) images of the aortic valve. Virtual images were processed from CT data using Vesalius 3D software and compared with visual images seen through a fiberoptic scope. EVALUATION: An endoscope gave a fine view of the aortic valve, while the virtual images elucidated the valve structures. Superimposition of the images from those two different modalities showed the virtual reality images precisely matching the visual images in both systole and diastole, confirming the validity of this virtual reality application. CONCLUSION: In view of this demonstrated fidelity of virtual imaging, this technology may be of sufficiently high quality to be considered a gold standard for cardiac anatomy.

  2. A Virtual-Reality Imaging Analysis of the Dynamic Aortic Root Anatomy Peer-reviewed

    Kenichi Kamiya, Yukihiro Nagatani, Yuji Matsubayashi, Yotaro Mori, Hodaka Wakisaka, Junghun Lee, Naoshi Minamidate, Noriyuki Takashima, Takeshi Kinoshita, Tomoaki Suzuki

    The Annals of Thoracic Surgery　112　(6)　2077-2083　2021/12

    Publisher: Elsevier BV

    DOI： 10.1016/j.athoracsur.2021.06.038 　

    ISSN： 0003-4975

    eISSN： 1552-6259

  3. Virtual Imaging-Guided Preoperative Planning for the Surgical Repair of an Anomalous Aortic-Origin Right Coronary Artery Peer-reviewed

    Taku Tanaka, Kenichi Kamiya, Suguru Matsui, Chihiro Yokoyama, Bruno Yuji Chimada, Yuji Matsubayashi, Shintaro Okuda, Fumihiro Miyashita, Noriyuki Takashima, Tomoaki Suzuki

    Journal of Coronary Artery Disease　32　(3)　2026/07/31

    DOI： 10.7793/jcad.32.26-00003 　

  4. Computational Fluid Dynamics Simulation of Hemodynamic Impact and Geometric Thresholds in Stenotic Coronary Distal Side‐to‐Side Anastomoses Peer-reviewed

    Kenichi Kamiya, Yukihiro Nagatani, Kohei Suzuki, Shohei Miyazaki, Shota Takano, Susumu Nakata, Yoshiyuki Watanabe, Tomoaki Suzuki

    Journal of Cardiac Surgery　2026/05/25

    DOI： 10.1155/jocs/7598433 　

  5. Systemic Circulation Model for a Computational Blood Flow Analysis in Localized Vascular Segments Peer-reviewed

    Shota Takano, Kenichi Kamiya, Susumu Nakata

    Journal of Coronary Artery Disease　32　(2)　2026/05/15

    DOI： 10.7793/jcad.31.26-00001 　

  6. Efficacy of Virtual Imaging for Abdominal Aortic Aneurysm Repair Complicated with Horseshoe Kidney Peer-reviewed

    Taiki Kakiuchi, Kenichi Kamiya, Yuji Matsubayashi, Haruna Ide, Yasuo Kondo, Tomoaki Suzuki

    Annals of Vascular Diseases　19　(25)　2026/05

    DOI： 10.3400/avd.cr.25-00111 　

  7. Multiple Arterial Grafting in Hemodialysis Patients.

    Kohei Hachiro, Noriyuki Takashima, Kenichi Kamiya, Masahide Enomoto, Yasuo Kondo, Fumihiro Miyashita, Hodaka Wakisaka, Tomoaki Suzuki

    Circulation reports　8　(3)　507-509　2026/03/10

    DOI： 10.1253/circrep.CR-25-0302 　

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    BACKGROUND: The effectiveness of multiple arterial grafting (MAG) for hemodialysis (HD) patients is unclear. METHODS AND RESULTS: We retrospectively analyzed 149 HD patients who underwent either MAG (n=97) or single arterial grafting (SAG) (n=52). After adjusting for preoperative characteristics using inverse probability of treatment weighting, the adjusted estimated 5-year rates of freedom from all-cause death and cardiac death in the MAG vs. SAG groups were 54.8% vs. 60.4% (P=0.779) and 83.5% vs. 87.4% (P=0.869), respectively. CONCLUSIONS: MAG did not improve the midterm outcomes for HD patients compared to SAG.

  8. Investigation into the utility of ultra-high-resolution mode on dynamic-ventilation computed tomography using sponge phantoms Peer-reviewed

    Ryo Uemura, Yukihiro Nagatani, Jun Matsubayashi, Akitoshi Inoue, Kyohei Iwai, Kenichi Kamiya, Kentaro Doi, Akira Sato, Hodaka Numasaki, Kazuaki Nakane, Masahiro Yanagawa, Noriyuki Tomiyama, Yoshiyuki Watanabe

    Scientific Reports　2025/12/11

    Publisher: Springer Science and Business Media LLC

    DOI： 10.1038/s41598-025-30102-5 　

    eISSN： 2045-2322

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    Abstract Ultra-high-resolution (UHR) computed tomography (CT) provides more detailed information on peripheral lung structures than normal-resolution (NR) CT for static images. However, its potential advantage in four-dimensional dynamic-ventilation CT (DVCT) has not been investigated. This experimental study used sponge phantoms and a compression machine to simulate respiratory changes and assess the superiority of the UHR mode on DVCT. We obtained results that demonstrated: (1) regardless of the compression percentage, the number of simulated peripheral air spaces (SPAS) detected on UHR-CT was greater than on NR-CT, as assessed using a simple binarization method. Similarly, peak b 0 values as a representative of total SPAS count obtained by homology-based image analysis were higher on UHR-CT than on NR-CT. (2) The deviation in measured longitudinal diameter and area of the SPAS relative to the reference standard—smartphone images—was smaller on UHR-CT than on NR-CT. (3) UHR DVCT demonstrated a gradual reduction in the longitudinal diameter and area of SPAS with increasing compression percentages, consistent with smartphone images, whereas NR DVCT did not. These findings suggested that UHR mode is superior to NR mode in depicting peripheral lung structures for DVCT as well as static images.

  9. Recent advances in cardiac imaging: emerging use of three-dimensional visualization for analyzing complex cardiovascular anatomy Invited Peer-reviewed

    Kenichi Kamiya, Yukihiro Nagatani, Susumu Nakata, Ryuta Seguchi, Subodh Verma

    Current Opinion in Cardiology　2025/09

    DOI： 10.1097/HCO.0000000000001260 　

  10. A Rare Surgical Case of Congenital Left Ventricular Diverticulum in an Adult Patient Peer-reviewed

    Taiki Kakiuchi, Kenichi Kamiya, Yotaro Mori, Tomoaki Suzuki

    Journal of Coronary Artery Disease　2025/08

    Publisher: The Japanese Coronary Association

    DOI： 10.7793/jcad.31.25-00013 　

    eISSN： 2434-2173

  11. Multiple Arterial Grafting in Patients With Low Left Ventricular Ejection Fraction.

    Kohei Hachiro, Noriyuki Takashima, Kenichi Kamiya, Masahide Enomoto, Yasuo Kondo, Fumihiro Miyashita, Hodaka Wakisaka, Tomoaki Suzuki

    Circulation journal : official journal of the Japanese Circulation Society　89　(8)　1145-1152　2025/07/25

    DOI： 10.1253/circj.CJ-24-1006 　

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    BACKGROUND: This study compared postoperative outcomes in patients with a preoperative left ventricular ejection fraction (LVEF) of ≤35% who underwent multiple (MAG) or single (SAG) arterial grafting during off-pump isolated coronary artery bypass grafting. METHODS AND RESULTS: Of 1,627 patients who underwent isolated coronary artery bypass grafting at Shiga University of Medical Science between 2002 and 2023, 176 with a preoperative LVEF ≤35% underwent MAG (n=115) or SAG (n=61). Baseline patient characteristics were comparable in the MAG and SAG groups after adjustment using inverse probability of treatment weighting. The study's mean (±SD) follow-up duration was 4.8±4.7 years. In the MAG and SAG groups, the adjusted estimated 5-year rates of freedom from all-cause death were 71.5% and 69.1%, respectively, while those of cardiac death were 94.1% and 89.5%, respectively. Kaplan-Meier curves showed significant differences in all-cause death (P=0.013) and cardiac death (P=0.001) favoring the MAG group. In a multivariable Cox hazards model, MAG was a predictor of all-cause death (hazard ratio 0.568; P=0.034) and cardiac death (hazard ratio 0.276; P=0.008). CONCLUSIONS: Compared with SAG, MAG was associated with significantly lower rates of all-cause death and cardiac death.

  12. Usefulness of Isosurface Geometric Measurement on Volume‐Rendered Images for Quantitative Measurements of Complex Cardiac Anatomical Features Peer-reviewed

    Kenichi Kamiya, Yukihiro Nagatani, Jun Matsubayashi, Ryo Uemura, Tatsuya Oki, Yuji Matsubayashi, Shinya Terada, Piers Vigers, Susumu Nakata, Yoshiyuki Watanabe, Tomoaki Suzuki

    Journal of Cardiac Surgery　2025/05

    DOI： 10.1155/jocs/5193639 　

  13. Computational fluid dynamics to simulate stenotic lesions in coronary end-to-side anastomosis Peer-reviewed

    Kenichi Kamiya, Shinya Terada, Yukihiro Nagatani, Yuji Matsubayashi, Kohei Suzuki, Shohei Miyazaki, Hiroki Matsui, Shota Takano, Susumu Nakata, Yoshiyuki Watanabe, Tomoaki Suzuki

    Interdisciplinary CardioVascular and Thoracic Surgery　40　(2)　2025/01/31

    Publisher: Oxford University Press (OUP)

    DOI： 10.1093/icvts/ivaf013 　

    eISSN： 2753-670X

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    Abstract OBJECTIVES End-to-side anastomosis is common in coronary artery bypass grafting, although restrictive suturing can narrow the anastomosis. We evaluated ex vivo end-to-side models by numerically simulating fluid dynamics to compare various degrees of stenotic anastomoses to predict haemodynamic effects. METHODS A carotid artery was grafted via an end-to-side anastomosis onto the left anterior descending artery of a porcine heart, with liquid silicone injected into the vessels. The end-to-side image was acquired via multidetector computed tomography for reference, and models of longitudinal shortening and bilateral narrowing were created with 25%, 50%, 75%, along with 90%, and 100% stenosis in the native coronary artery. Haemodynamics were analysed using computational fluid dynamics simulations to calculate streamlines, wall shear stress and oscillatory shear index. RESULTS In the reference model, the graft inflow impinged on the floor of the native artery, creating a recirculating vortex and a high oscillatory shear index region near the heel. As the graft flow angle increased with longitudinal stenosis, bilateral stenosis generated helical flow near the lateral wall of the native artery, worsening with increased stenosis. At 75% stenosis, both longitudinal shortening and bilateral narrowing caused abnormal flow separation, with low wall shear stress and high oscillatory regions forming distal to the toe of the anastomosis. CONCLUSIONS Computational fluid dynamics modelling predicts that end-to-side anastomoses with 75% longitudinal or bilateral stenosis are at a risk of intimal hyperplasia causing graft failure, while anastomotic stenosis <50% indicates acceptable haemodynamics. Future studies should explore long-term clinical outcomes with suboptimal surgical anastomotic construction. CLINICAL REGISTRATION NUMBER Not applicable.

  14. Effect of Preoperative Left Ventricular Mass on Outcomes After Aortic Valve Replacement for Aortic Regurgitation.

    Kohei Hachiro, Noriyuki Takashima, Kenichi Kamiya, Yasuo Kondo, Tomoaki Suzuki

    Circulation journal : official journal of the Japanese Circulation Society　88　(12)　1965-1972　2024/11/25

    DOI： 10.1253/circj.CJ-24-0464 　

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    BACKGROUND: We determined the left ventricular mass index (LVMI) cut-off value for the risk of major adverse cardiac and cerebrovascular events (MACCE) in patients undergoing aortic valve replacement (AVR) for aortic regurgitation (AR) and investigated the effect of preoperative left ventricular remodeling on long-term outcomes postoperatively. METHODS AND RESULTS: Of the 1,580 patients who underwent surgical AVR at Shiga University of Medical Science between January 2002 and December 2022, we retrospectively analyzed data for 263 patients who underwent surgery for AR. The receiver operating characteristic curve showed that the cut-off value of preoperative LVMI for the incidence of MACCE was 200 g/m2(area under the curve=0.692). We compared postoperative outcomes between patients with preoperative LVMI >200 g/m2(n=92) and those with preoperative LVMI ≤200 g/m2(n=171) after adjusting for preoperative characteristics using inverse probability of treatment weighting. The mean (±SD) follow-up period was 6.9±5.1 years. The rate of MACCE at 10 years was significantly higher in patients with preoperative LVMI >200 g/m2than in those with preoperative LVMI ≤200 g/m2(25.6% vs. 13.5%; P=0.020). In multivariable Cox models, preoperative LVMI >200 g/m2was significantly associated with a higher risk of MACCE (hazard ratio 2.356, P=0.006). CONCLUSIONS: Preoperative LVMI >200 g/m2was associated with a higher rate of MACCE in patients undergoing AVR for AR.

  15. Moderate hypothermia circulatory arrest as a brain-protective strategy for type A aortic dissection. International-journal

    Hodaka Wakisaka, Shunta Miwa, Yuji Matsubayashi, Yotaro Mori, Junghun Lee, Kenichi Kamiya, Noriyuki Takashima, Tomoaki Suzuki

    Interdisciplinary cardiovascular and thoracic surgery　39　(4)　2024/10/08

    DOI： 10.1093/icvts/ivae166 　

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    OBJECTIVES: Brain-protective strategies for acute type A aortic dissection (TAAD) remain controversial. Moderate hypothermia circulatory arrest (MHCA) without cerebral perfusion is not commonly used. However, we aimed to assess its safety and efficacy in 358 patients who underwent hemiarch replacement with MHCA for acute type A aortic dissection at our institution from August 2012 to August 2022. METHODS: Clinical outcomes were compared according to circulatory arrest time [≤15 min (S group, n = 52) vs ≥16 min (L group, n = 306)]. The primary outcome was postoperative stroke. RESULTS: The S group had more older patients (72.5 vs 68.8 years; P = 0.04), a greater incidence of carotid artery malperfusion (21% vs 11%; P = 0.043) and a lower body mass index (21.7 vs 23.6 kg/m2; P < 0.01) and hemodynamic instability (3.8% vs 16%; P = 0.02) than the L group. The incidence of postoperative stroke (7.7% vs 12%; P = 0.33) and the rate of 30-day mortality (5.8% vs 6.5%; P = 0.83) did not significantly differ between groups. After adjusting for all potential confounding factors pre- and intraoperatively, there was no significant difference in postoperative outcomes between groups. CONCLUSIONS: MHCA alone for TAAD had comparable postoperative outcomes with circulatory arrest times under and over 15 min. However, longer arrest times were associated with a higher risk of stroke.

  16. 心室中隔穿孔を伴った心筋梗塞後心室中隔血腫に対する右室ダブルパッチ法

    角 宏明, 鉢呂 康平, 高島 範之, 神谷 賢一, 榎本 匡秀, 脇坂 穂高, 島田 ゆうじ, 松岡 健太郎, 鈴木 友彰

    胸部外科　77　(11)　911-916　2024/10

    Publisher: (株)南江堂

    ISSN： 0021-5252

    eISSN： 2432-9436

  17. [Double Patch Technique via Right Ventriculotomy After Ventricular Septal Perforation with Intramyocardial Dissecting Hematoma].

    Komei Kado, Kohei Hachiro, Noriyuki Takashima, Kenichi Kamiya, Masahide Enomoto, Hodaka Wakisaka, Yuji Chimada, Kentaro Matsuoka, Tomoaki Suzuki

    Kyobu geka. The Japanese journal of thoracic surgery　77　(11)　911-916　2024/10

    ISSN： 0021-5252

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    An 86-year-old female was taken to hospital with complaints of general malaise and anorexia. Echocardiography showed an abnormal space between the ventricles, extending to the back of the left atrium, with a shunt from the left ventricle into both that abnormal space and the right ventricle. The next morning, the patient had a large amount of tarry stool and progressive anemia. A contrast-enhanced computed tomography( CT) revealed an opacified space behind the left atrium. The cardiologist considered the possibility of a pseudoaneurysm behind the left atrium perforated into the esophagus, and the patient was referred to our department for surgical treatment. An emergency operation was performed to repair the pseudoaneurysm behind the left atrium. We found a 5-mm defect just below the tricuspid valve. There was a space between the ventricles that communicate to the defect and to the rear. A defect also leaded to the left ventricle. The defect was closed using double patches placed in "sandwich" fashion, one on the left ventricle side and another on the right ventricle side. Postoperative contrast-enhanced CT scan revealed blood clot in the space between the ventricles.

  18. Author's reply to Optimal Pacemaker Implantation in Patients with Isolated Persistent Left Superior Vena Cava.

    Toshika Hata, Koichi Kato, Kenichi Kamiya, Yusuke Okuyama, Yusuke Fujii, Noriaki Yagi, Tomoya Ozawa, Yoshihisa Nakagawa

    Internal medicine (Tokyo, Japan)　63　(17)　2479-2479　2024/09/01

    DOI： 10.2169/internalmedicine.3218-23 　

  19. Surgical repair for primary tricuspid regurgitation related to trauma.

    Masahide Enomoto, Noriyuki Takashima, Kenichi Kamiya, Junghun Lee, Kohei Hachiro, Hodaka Wakisaka, Komei Kado, Bruno Yuji Chimada, Kentaro Matsuoka, Tomoaki Suzuki

    Journal of cardiology cases　29　(6)　251-253　2024/06

    Publisher: Elsevier BV

    DOI： 10.1016/j.jccase.2024.02.005 　

    ISSN： 1878-5409

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    UNLABELLED: We report a case of a 45-year-old man presenting with tachycardia and palpitation. Echocardiography indicated severe tricuspid regurgitation. We suspected traumatic tricuspid damage due to high energy trauma in a motor vehicle accident 17 years earlier. He underwent a sternotomy, and his tricuspid valve was repaired with chordal reconstruction, indentation closure, and ring annuloplasty. The postoperative period was uneventful, and he was discharged 10 days after the operation. This report highlights the value of echocardiography for diagnosis of primary tricuspid regurgitation related to trauma, and the importance of early diagnosis to allow surgical intervention before irreversible damage occurs. LEARNING OBJECTIVE: Traumatic tricuspid regurgitation is a rare cardiovascular complication of blunt chest trauma. The mechanism of the tricuspid valve injury is thought to be secondary to sudden impact causing an anteroposterior compression of the right ventricle by the sternum in end-diastole. This injury is often incidentally identified or can be missed until the patient experiences symptoms of right heart failure resulting from severe tricuspid regurgitation.

  20. A Case of Infectious Pseudoaneurysms of the Left Subclavian Artery and Abdominal Aorta in a Patient with a Metal Allergy

    Kentaro Matsuoka, Noriyuki Takashima, Kenichi Kamiya, Masahide Enomoto, Kohei Hachiro, Hodaka Wakisaka, Komei Kado, Bruno Yuji Chimada, Tomoaki Suzuki

    Japanese Journal of Cardiovascular Surgery　52　(6)　444-448　2023/11/15

    Publisher: The Japanese Society for Cardiovascular Surgery

    DOI： 10.4326/jjcvs.52.444 　

    ISSN： 0285-1474

    eISSN： 1883-4108

  21. 金属アレルギー患者に発症したステント留置後左鎖骨下動脈および腹部大動脈感染性仮性動脈瘤の1例

    松岡 健太郎, 高島 範之, 神谷 賢一, 榎本 匡秀, 鉢呂 康平, 脇坂 穂高, 角 宏明, 島田 ゆうじ, 鈴木 友彰

    日本心臓血管外科学会雑誌　52　(6)　444-448　2023/11

    Publisher: (NPO)日本心臓血管外科学会

    ISSN： 0285-1474

    eISSN： 1883-4108

  22. Virtual Imaging of Unruptured Sinus of Valsalva Aneurysm and Autologous Pericardial Patch Peer-reviewed

    Yuji Matsubayashi, Kenichi Kamiya, Piers Vigers, Noriyuki Takashima, Tomoaki Suzuki

    Annals of Thoracic Surgery Short Reports　2023/11

    Publisher: Elsevier BV

    DOI： 10.1016/j.atssr.2023.11.009 　

    ISSN： 2772-9931

  23. [Total Arch Replacement with Open Stent Grafting for Chronic Dissecting Aortic Aneurysm with Aberrant Right Subclavian Artery:Report of a Case].

    Kai Hanato, Noriyuki Takashima, Yuji Matsubayashi, Yotaro Mori, Kohei Hachiro, Masahide Enomoto, Kenichi Kamiya, Tomoaki Suzuki

    Kyobu geka. The Japanese journal of thoracic surgery　76　(8)　646-651　2023/08

    ISSN： 0021-5252

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    A 59-year-old man was referred to our hospital for surgery for a dissecting aortic aneurysm with an aberrant right subclavian artery( ARSA). He had a history of surgery for atrial septal defect at the age of 3 and developed Stanford type B aortic dissection at the age of 53. The maximum diameter of the aortic aneurysm was 68 mm, and the entry was located close to the ARSA origin. We established cardiopulmonary bypass using the femoral artery and vein and performed a median re-sternotomy. We performed total arch replacement with the open stent-grafting technique. The ARSA was ligated from the right thoracic cavity. Three arch branches were reconstructed in situ, and the right axillary artery was bypassed with a 9 mm Dacron graft. Six months after that operation, reduction of the false lumen was observed. This strategy is considered to be effective for chronic aortic dissection with ARSA.

  24. A virtual-reality imaging system potentially useful for cardiovascular surgeons. Peer-reviewed

    36　(1)　11-16　2023/03

  25. Virtual Imaging for a Complex Case of Previous Coarctation Repair Peer-reviewed

    Yuji Matsubayashi, Kenichi Kamiya, Tomoaki Suzuki, Shunta Miwa, Yotaro Mori, Masahide Enomoto, Naoshi Minamidate, Noriyuki Takashima

    Annals of Thoracic Surgery Short Reports　2023/03

    DOI： 10.1016/j.atssr.2022.10.002 　

  26. Off-Pump Bilateral Skeletonized Internal Thoracic Artery Grafting in Octogenarians.

    Kohei Hachiro, Tomoaki Suzuki, Noriyuki Takashima, Kenichi Kamiya

    Circulation journal : official journal of the Japanese Circulation Society　87　(2)　312-319　2023/01/25

    DOI： 10.1253/circj.CJ-22-0443 　

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    BACKGROUND: We compared postoperative outcomes in octogenarians who underwent off-pump isolated coronary artery bypass grafting for multivessel disease using either skeletonized bilateral or single internal thoracic artery (ITA). METHODS AND RESULTS: Among 1,532 patients who underwent isolated coronary artery bypass grafting between 2002 and 2021, 173 octogenarians were analyzed retrospectively. After inverse probability of treatment weighting, we found no statistically significant difference regarding patients' preoperative characteristics. No patient experienced deep sternal wound infection. More patients in the single than bilateral ITA group died within 30 days after surgery (5.0% vs. 0%, respectively; P=0.003). The mean follow-up duration was 4.2 years. At 5 years, the freedom from overall death following bilateral versus single ITA grafting was 78.2% and 53.7%, respectively (log-rank test, P=0.003), and freedom from major adverse cardiac and cerebrovascular events (MACCE) was 67.9% and 44.8% respectively (log-rank test, P=0.002). In multivariable Cox models, bilateral ITA grafting was significantly associated with a lower risk of overall death (hazard ratio [HR] 0.555; 95% confidence interval [CI] 0.342-0.903; P=0.018) and MACCE (HR 0.586; 95% CI 0.376-0.913; P=0.018). CONCLUSIONS: Compared with single ITA grafting, off-pump skeletonized bilateral ITA grafting is associated with lower rates of overall death and MACCE in octogenarians undergoing CABG and does not increase the risk of deep sternal wound infection.

  27. Persistent Left Superior Vena cava with the Absence of the Right Superior Vena Cava and Atrial Appendage: Complex Pacemaker Implantation in a Patient Presenting with a Rare Vascular Anomaly Peer-reviewed

    Toshika Hata, Koichi Kato, Kenichi Kamiya, Yusuke Okuyama, Yusuke Fujii, Noriaki Yagi, Tomoya Ozawa, Yoshihisa Nakagawa

    Internal Medicine　2023

    Publisher: Japanese Society of Internal Medicine

    DOI： 10.2169/internalmedicine.2391-23 　

    ISSN： 0918-2918

    eISSN： 1349-7235

  28. 生体心臓シミュレーターに四次元Virtual reality技術を応用した新たな手術教育システム Peer-reviewed

    神谷 賢一, 永谷 幸裕, 寺田 真也, 松林 優児, 三輪 駿太, 森 陽太郎, 脇坂 穂高, 榎本 匡秀, 南舘 直志, 高島 範之, 藤井 太平, 仲田 晋, 鈴木 友彰

    日本外科学会雑誌　124　(1)　113-115　2023/01

  29. Cover Image: Volume 37 Issue 8

    Kenichi Kamiya, Yuji Matsubayashi, Shinya Terada, Yukihiro Nagatani, Taihei Fujii, Susumu Nakata, Tomoaki Suzuki

    Journal of Cardiac Surgery　2022/08

    DOI： 10.1111/jocs.16752 　

  30. A Novel Virtual-reality Imaging System in Cardiovascular Surgery:a Potentially Promising Technology for Surgeons Peer-reviewed

    Kenichi Kamiya, Yukihiro Nagatani, Shinya Terada, Yuji Matsubayashi, Shunta Miwa, Yotaro Mori, Masahide Enomoto, Naoshi Minamidate, Noriyuki Takashima, Taihei Fujii, Susumu Nakata, YenWei Chen, Tomoaki Suzuki

    Kyobu Geka　75　(6)　403-410　2022/06

    ISSN： 0021-5252

    More details Close

    Adequate preoperative planning may facilitate successful procedures in cardiovascular surgery. We have developed a system named the Vesalius 3D suite, combining three-dimensional (3D) image-processing software with an optic-tracking spatial navigation, allowing quick, accessible 3D image interpretation for virtual reality (VR) exploration and measurement from one or more of a range of imaging modalities. We present a novel method of virtual imaging analysis for preoperative planning and simulation in cardiovascular surgery using this 3D-VR system. Based on unimodal or multimodal medical imaging data, digital imaging and communication in medicine (DICOM) data sets can be reconstructed for 3D visualization. Virtually reconstructed images can be viewed on flat-screen or stereoscopic display, revealing each patient's specific anatomy and the internal structures in exquisite detail. Highly accessible 3D interpretation promptly permits precise measurements of repair-relevant anatomical parameters including geometrically complex shapes. This technology may promote understanding of form and function in the cardiovascular system, and facilitate operative procedures in more challenging cases, and it seems especially valuable for any surgeon to gain experience in practicing for rarely-performed procedures or uncommon patient-specific preoperative surgical rehearsal.

  31. Ex‐vivo aortic root and coronary artery cast measurement to validate the accuracy of virtual imaging International-journal Peer-reviewed

    Kenichi Kamiya MD, Yuji Matsubayashi MD, Shinya Terada MD, Yukihiro Nagatani MD, PhD,Taihei Fujii MD, PhD,Susumu, Nakata PhD, Tomoaki Suzuki MD, PhD

    Journal of Cardiac Surgery　37　(8)　2461-2465　2022/05

    DOI： 10.1111/jocs.16559 　

    More details Close

    BACKGROUND AND AIM OF THE STUDY: To investigate the accuracy of two methods of measuring features in cardiac anatomy, using an objective standard cast model. METHODS: We made a silicone cast using a swine heart. Computerized tomography data of the solidified cast were processed through virtual reality (VR) software and through two-dimensional multiplanar-reconstruction (2D-MPR), and all measurements were compared against physical measurements of the cast. RESULTS: The cast perfectly demonstrated the fine detail of the aortic valve and the proximal parts of coronary arteries. Anatomical features were measured by 3D-VR, 2D-MPR, and directly on the cast. Measurement differences between 2D-MPR and the cast were on average at least 3.6 times larger than those between 3D-VR and the cast. CONCLUSIONS: Based on the observed accuracy, 3D-VR measurements seem considerably more accurate than the current standard 2D-MPR, and 3D-VR may be considered as the next gold standard for 3D measurement of cardiac anatomy in vivo.

  32. Cover Image: Volume 112, Issue 6

    Kenichi Kamiya, Yukihiro Nagatani, Yuji Matsubayashi, Yotaro Mori, Hodaka Wakisaka, Junghun Lee, Naoshi Minamidate, Noriyuki Takashima, Takeshi Kinoshita, Tomoaki Suzuki

    The Annals of Thoracic Surgery　2021/07

    DOI： 10.1016/j.athoracsur.2021.06.038 　

  33. Dual Repair for Ischemic/Functional Mitral Regurgitation Peer-reviewed

    Masashi Komeda, Kenichi Kamiya

    73　(1)　16-21　2020/01

  34. Successful stentless aortic valve replacement navigated by VR images in a case of bicuspid aortic stenosis with Valsalva sinus asymmetry. Peer-reviewed

    47　(6)　267-271　2018/11

  35. [Usefulness of Balloon Aortic Valvuloplasty for Determining the Operative Procedure in a Patient with Severe Aortic Stenosis Complicated with Secondary Mitral Regurgitation;Report of a Case]. Peer-reviewed

    Kenichi Kamiya, Akira Furuta, Ryoi Okano, Haruki Tanaka, Masaomi Fukusumi, Tadamasa Miyauchi, Takeo Tedoriya

    Kyobu geka. The Japanese journal of thoracic surgery　70　(9)　799-803　2017/08

    Publisher:

    ISSN： 0021-5252

    More details Close

    A 59-year-old man on chronic hemodialysis presented with severe aortic stenosis(AS) and moderate mitral regurgitation (MR). Although aortic valve replacement was scheduled, his status deteriorated into New York Heart Association(NYHA) class III heart failure due to the exacerbation of AS and concomitant MR. Double valve replacement was considered to be too high risk for the patient, and balloon aortic valvuloplasty(BAV) was initially performed. As a result, the mean pressure gradient of the aortic valve decreased from 65 to 28 mmHg and the mean pulmonary pressure also from 52 to 33 mmHg. Furthermore, MR improved from severe to moderate following BAV. We considered the alleviation of aortic stenosis was sufficient treatment for the patient. He underwent aortic valve replacement on the following day of BAV. Postoperative echocardiogram after 1 month showed mild MR, and the estimated pulmonary systolic pressure was 35 mmHg. During the 1-year follow up, MR was not aggravated. BAV might be a useful diagnostic method to determine the operative strategy for severe AS complicated with secondary MR.

  36. Transgenic Drosophila models of Noonan syndrome causing PTPN11 gain-of-function mutations. International-journal Peer-reviewed

    Kimihiko Oishi, Konstantin Gaengel, Srinivasan Krishnamoorthy, Kenichi Kamiya, In-Kyong Kim, Huiwen Ying, Ursula Weber, Lizabeth A Perkins, Marco Tartaglia, Marek Mlodzik, Leslie Pick, Bruce D Gelb

    Human molecular genetics　15　(4)　543-53　2006/02/15

    ISSN： 0964-6906

    More details Close

    Mutations in the PTPN11 gene, which encodes the protein tyrosine phosphatase SHP-2, causes Noonan syndrome (NS), an autosomal dominant disorder with pleomorphic developmental abnormalities. Certain germline and somatic PTPN11 mutations cause leukemias. Mutations have gain-of-function (GOF) effects with the commonest NS allele, N308D, being weaker than the leukemia-causing mutations. To study the effects of disease-associated PTPN11 alleles, we generated transgenic fruitflies with GAL4-inducible expression of wild-type or mutant csw, the Drosophila orthologue of PTPN11. All three transgenic mutant CSWs rescued a hypomorphic csw allele's eye phenotype, documenting activity. Ubiquitous expression of two strong csw mutant alleles were lethal, but did not perturb development from some CSW-dependent receptor tyrosine kinase pathways. Ubiquitous expression of the weaker N308D allele caused ectopic wing veins, identical to the EGFR GOF phenotype. Epistatic analyses established that csw(N308D)'s ectopic wing vein phenotype required intact EGF ligand and receptor, and that this transgene interacted genetically with Notch, DPP and JAK/STAT signaling. Expression of the mutant csw transgenes increased RAS-MAP kinase activation, which was necessary but not sufficient for transducing their phenotypes. The findings from these fly models provided hypotheses testable in mammalian models, in which these signaling cassettes are largely conserved. In addition, these fly models can be used for sensitized screens to identify novel interacting genes as well as for high-throughput screening of therapeutic compounds for NS and PTPN11-related cancers.

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Misc. 22

  1. [A Rare Case of an Epidermoid Cyst Originating from the Upper Urinary Tract]. Peer-reviewed

    Haruna Ide, Yuji Sakano, Kenichi Kamiya, Kayo Takeuchi, Eiki Hanada, Chul Jang Kim

    Hinyokika kiyo. Acta urologica Japonica　71　(2)　49-52　2025/02

    DOI： 10.14989/ActaUrolJap_71_2_49 　

    More details Close

    Epidermoid cysts originating from the upper urinary tract are extremely rare, and only five cases have been reported previously. We report a rare case of epidermoid cyst that originated from the right ureter : A 76-year-old man presented with asymptomatic gross hematuria. Computed tomography showed a right ureteral tumor (14×8 mm in size). Retrograde pyelography showed a defect (14 mm diameter) of the contrast medium in the same region. Urinary cytological examination indicated class III. A ureteral tumor was clinically indicated, and retroperitoneoscopic-assisted radical nephroureterectomy was performed. Postoperative histopathological examination of the resected specimen showed ureteral epidermoid cysts without any malignancy.

  2. ハイブリッドレンダリング技術を用いた心臓の複雑構造における定量的計測の有用性

    神谷 賢一, 永谷 幸裕, 松林 潤, 上村 諒, 沖 達也, 松林 優児, 寺田 真也, 仲田 晋, 渡邉 嘉之, 鈴木 友彰

    日本胸部外科学会定期学術集会　77回　COP9-2　2024/11

    Publisher: (一社)日本胸部外科学会

  3. Ex-vivo冠動脈バイパスモデルを用いた端側吻合における狭窄病変の数値流体解析

    神谷 賢一, 寺田 真也, 松林 優児, 永谷 幸裕, 鈴木 康平, 宮崎 翔平, 松井 拓貴, 高野 祥汰, 仲田 晋, 渡邉 嘉之, 鈴木 友彰

    日本胸部外科学会定期学術集会　77回　COP13-7　2024/11

    Publisher: (一社)日本胸部外科学会

  4. ハイブリッドレンダリング技術を用いた僧帽弁形成術前後の立体構造解析

    松林 優児, 神谷 賢一, 横山 千紘, 松井 英, 田中 拓, 西村 知起, 島田 ゆうじ, 奥田 進太郎, 三輪 駿太, 森 陽太郎, 高島 範之, 鈴木 友彰

    日本胸部外科学会定期学術集会　77回　CRF1-3　2024/11

    Publisher: (一社)日本胸部外科学会

  5. ハイブリッドレンダリング技術を用いた心臓の複雑構造における定量的計測の有用性

    神谷 賢一, 永谷 幸裕, 松林 潤, 上村 諒, 沖 達也, 松林 優児, 寺田 真也, 仲田 晋, 渡邉 嘉之, 鈴木 友彰

    日本胸部外科学会定期学術集会　77回　COP9-2　2024/11

    Publisher: (一社)日本胸部外科学会

  6. Ex-vivo冠動脈バイパスモデルを用いた端側吻合における狭窄病変の数値流体解析

    神谷 賢一, 寺田 真也, 松林 優児, 永谷 幸裕, 鈴木 康平, 宮崎 翔平, 松井 拓貴, 高野 祥汰, 仲田 晋, 渡邉 嘉之, 鈴木 友彰

    日本胸部外科学会定期学術集会　77回　COP13-7　2024/11

    Publisher: (一社)日本胸部外科学会

  7. 最先端イメージング技術 ハイブリッドレンダリング技術を用いた3次元画像解析法

    神谷 賢一, 永谷 幸裕, 松林 優児, 寺田 真也, 高島 範之, 仲田 晋, 鈴木 友彰

    日本外科学会定期学術集会抄録集　124回　SF-6　2024/04

    Publisher: (一社)日本外科学会

  8. ハイブリッドレンダリング技術を用いた大動脈基部Geometryの3次元解析法

    神谷 賢一, 永谷 幸裕, 松林 優児, 寺田 真也, 高島 範之, 仲田 晋, 鈴木 友彰

    日本心臓血管外科学会学術総会抄録集　54回　O13-3　2024/02

    Publisher: (NPO)日本心臓血管外科学会

  9. Ex-vivo冠動脈バイパスモデルを用いた吻合部血流シミュレーション

    寺田 真也, 神谷 賢一, 松林 優児, 永谷 幸裕, 松井 拓貴, 堺 憲真, 高野 祥汰, 仲田 晋, 鈴木 友彰

    日本心臓血管外科学会学術総会抄録集　54回　O21-2　2024/02

    Publisher: (NPO)日本心臓血管外科学会

  10. Successful Repair of Ventricular Septal Rupture with Impella Support: A Report of Two Cases

    鉢呂康平, 高島範之, 神谷賢一, 榎本匡秀, 近藤康生, 宮下史寛, 脇坂穂高, 松岡健太郎, 角宏明, 鈴木友彰

    日本心臓血管外科学会雑誌　53　(6)　2024

    ISSN： 0285-1474

  11. Ex-vivo冠動脈バイパスモデルを用いた吻合部血流シミュレーション

    寺田 真也, 神谷 賢一, 松林 優児, 永谷 幸裕, 松井 拓貴, 堺 憲真, 高野 祥汰, 仲田 晋, 鈴木 友彰

    日本冠疾患学会誌　(Suppl.2023)　188-188　2023/11

    Publisher: (NPO)日本冠疾患学会

    eISSN： 2434-2157

  12. 3次元ハイブリッド画像技術を用いた弁膜症手術シミュレーション

    神谷 賢一, 永谷 幸裕, 松林 優児, 高島 範之, 仲田 晋, 鈴木 友彰

    日本冠疾患学会誌　(Suppl.2023)　225-225　2023/11

    Publisher: (NPO)日本冠疾患学会

    eISSN： 2434-2157

  13. 最先端ハイブリッドレンダリング技術を用いた3次元画像解析法

    神谷 賢一, 永谷 幸裕, 松林 優児, 高島 範之, 仲田 晋, 鈴木 友彰

    日本冠疾患学会誌　(Suppl.2023)　225-225　2023/11

    Publisher: (NPO)日本冠疾患学会

    eISSN： 2434-2157

  14. 最先端イメージング技術 ハイブリッドレンダリング技術を用いた3次元画像解析法

    神谷 賢一, 永谷 幸裕, 松林 優児, 寺田 真也, 高島 範之, 藤井 太平, 仲田 晋, 鈴木 友彰

    日本胸部外科学会定期学術集会　76回　BAA1-2　2023/10

    Publisher: (一社)日本胸部外科学会

  15. AR,VRと外科～診断・手術・教育における活用 心臓血管外科における最先端イメージング技術 四次元バーチャルリアリティー画像の有用性

    神谷 賢一, 永谷 幸裕, 角 宏明, 島田 ゆうじ, 松岡 健太郎, 鉢呂 康平, 榎本 匡秀, 高島 範之, 仲田 晋, 鈴木 友彰

    日本外科学会定期学術集会抄録集　123回　WS-5　2023/04

    Publisher: (一社)日本外科学会

  16. 胸部大動脈手術における三次元VR画像を用いた術前シミュレーションの有用性

    神谷 賢一, 永谷 幸裕, 角 宏明, 島田 ゆうじ, 松岡 健太郎, 鉢呂 康平, 榎本 匡秀, 高島 範之, 鈴木 友彰

    日本心臓血管外科学会学術総会抄録集　53回　1173-1173　2023/03

    Publisher: (NPO)日本心臓血管外科学会

  17. 急性A型大動脈解離に対する手術室直接搬入システム

    森本政憲, 垣内泰生, 西村知起, 角宏明, 森陽太郎, 脇坂穂高, 鉢呂康平, 宮下史寛, 近藤康生, 榎本匡秀, 神谷賢一, 高島範之, 鈴木友彰

    日本胸部外科学会定期学術集会(Web)　76th　2023

  18. 心臓血管外科における新たな四次元バーチャルリアリティー技術の有用性

    神谷 賢一, 永谷 幸裕, 寺田 真也, 角 宏明, 島田 ゆうじ, 松岡 健太郎, 松林 優児, 森 陽太郎, 榎本 匡秀, 高島 範之, 藤井 太平, 仲田 晋, 鈴木 友彰

    日本胸部外科学会定期学術集会　75回　OP3-2　2022/10

    Publisher: (一社)日本胸部外科学会

  19. Virtual reality技術の臨床応用に向けた四次元画像解析の信頼性の検証

    神谷 賢一, 永谷 幸裕, 寺田 真也, 松林 優児, 三輪 駿太, 森 陽太郎, 脇坂 穂高, 榎本 匡秀, 南舘 直志, 高島 範之, 藤井 太平, 仲田 晋, 鈴木 友彰

    日本心臓血管外科学会学術総会抄録集　52回　O29-5　2022/03

    Publisher: (NPO)日本心臓血管外科学会

  20. Aortic Stenosis with Alkaptonuria

    森陽太郎, 高島範之, 三輪駿太, 松林優児, 南舘直志, 榎本匡秀, 神谷賢一, 鈴木友彰

    日本心臓血管外科学会雑誌　51　(6)　2022

    ISSN： 0285-1474

  21. A Stent Graft Infection after Abdominal Aortic Aneurysm Repair Peer-reviewed

    Masakazu Aoki, Kenichi Kamiya, Shinji Ogawa, Hiroshi Baba, Yasuhide Okawa

    40　(3)　125-129　2011

  22. Local application of tranexamic acid for off-pump CABG

    Masakazu Aoki, Kenichi Kamiya, Shinji Ogawa, Hiroshi Baba, Yasuhide Okawa

    J Jpn Coron Assoc　17　(3)　204-207　2011

Show all ︎Show first 5

Presentations 40

  1. A New Paradigm in Aortic Root Treatment: Preoperative Design Enabled by CT Imaging and Physics Based Simulation Invited

    Kenichi Kamiya, Nathon Arthur, Kohei Suzuki, Shohei Miyazaki, Keiichi Itatani, Jennifer Chung, Maral Ouzonian, Kiichiro Kumagai, Yoshikatsu Saiki

    2026/10/22

  2. 三次元多層レンダリング技術を用いた心臓CT画像の高精度可視化と形態再現性の検証

    神谷賢一, 永谷幸裕, 仲田晋, Jennifer Chung, Maral Ouzonian, 熊谷紀一郎, 齋木佳克

    第79回日本胸部外科学会定期学術集会 心臓 ビデオシンポジウム： ３Dモデルは“見る”だけか、“決める”ためのツールか？：3Dシミュレーションの臨床的有用性を再考する　2026/10/20

  3. 数値流体解析による冠動脈バイパス吻合部狭窄が三次元らせん流動態と壁面せん断応力に及ぼす影響

    神谷賢一, 永谷幸裕, 仲田晋, 鈴木康平, 宮崎翔平, Jennifer Chung, Maral Ouzonian, 熊谷紀一郎, 齋木佳克

    第79回日本胸部外科学会定期学術集会 心臓 シンポジウム9： CABGにおける虚血評価 (FFR、NHPR、画像、その他）　2026/10/20

  4. 3D形態解析に基づく個別化手術デザインの有用性： 大動脈基部再建の経験から Invited

    神谷賢一

    東北大学 八外科カンファレンス　2026/07/14

  5. ハイブリッドレンダリング技術を用いた心臓弁の3次元画像解析法

    神谷賢一, 永谷幸裕, 仲田晋, 鈴木友彰

    第69回関西胸部外科学会学術集会　2026/05/22

  6. 数値流体解析を用いた冠動脈バイパス吻合における吻合部狭窄病変の血流シミュレーション

    神谷賢一, 永谷幸裕, 鈴木康平, 宮崎翔平, 高野祥汰, 仲田晋, 鈴木友彰

    第69回関西胸部外科学会学術集会 要望演題 心臓2(心臓）　2026/05/22

  7. 三次元数値流体解析による冠動脈バイパス吻合における狭窄病変の血流シミュレーション

    神谷賢一, 永谷幸裕, 鈴木康平, 宮崎翔平, 高野祥汰, 仲田晋, 鈴木友彰

    第126回日本外科学会定期学術集会　2026/04/23

  8. 数値流体解析を用いた冠動脈バイパス吻合に おける狭窄病変の血流シミュレーション

    神谷賢一, 永谷幸裕, 鈴木康平, 宮崎翔平, 高野祥汰, 仲田晋, 鈴木友彰

    第56回日本心臓血管外科学会学術総会　2026/02/21

  9. 最先端ハイブリッドレンダリング技術を用いた心臓弁の3次元画像解析法

    神谷賢一, 永谷幸裕, 仲田晋, 鈴木友彰

    第15回日本心臓弁膜症学会 (最優秀演題賞)　2025/12/20

  10. 数値流体解析を用いた冠動脈バイパス吻合における狭窄病変の血流シミュレーション

    神谷賢一, 永谷幸裕, 鈴木康平, 宮崎翔平, 高野祥汰, 仲田晋, 鈴木友彰

    第38回日本冠疾患学会学術集会 外科シンポジウム 「甘い狭窄（FFR有意）やviabilityが低い（灌流域が狭い）症例へのCABGの工夫」　2025/11/28

  11. JATSフェローシップ帰朝報告

    神谷賢一

    第78回日本胸部外科学会定期学術集会 学会企画８ 国際委員会 ホームカミングセッション　2025/10/25

  12. 数値流体解析による冠動脈バイパス吻合における狭窄病変の血流シミュレーション

    神谷賢一, 永谷幸裕, 鈴木康平, 宮崎翔平, 高野祥汰, 仲田晋, 鈴木友彰

    第78回日本胸部外科学会定期学術集会　2025/10/24

  13. 3D画像が開く、surgical operationの新たな視点 Invited

    神谷賢一

    高知大学大学院ヘルスケアイノベーションコース 修士課程「医用工学」　2025/07/23

  14. 数値流体解析を用いた冠動脈バイパス吻合部における狭窄病変の血流シミュレーション

    神谷賢一, 永谷幸裕, 鈴木康平, 宮崎翔平, 高野祥汰, 仲田晋, 鈴木友彰

    第29回日本冠動脈外科学会学術大会　2025/07/03

  15. Novel 3D imaging technique potentially useful for surgeons Invited

    Kenichi Kamiya

    Cardiac Surgery Virtual Rounds, Toronto General Hospital, Toronto, Canada　2025/06/23

  16. Novel three-dimensional evaluation technique of visualized in-vivo cardiovascular anatomy Invited

    2025/05/09

  17. Ex-vivo冠動脈バイパスモデルを用いた端側吻合における狭窄病変の数値流体解析

    第55回日本心臓血管外科学会学術総会　2025/02/20

  18. Ex-vivo冠動脈バイパスモデルを用いた端側吻合部狭窄における血流シミュレ ーション

    神谷賢一, 永谷幸裕, 松井拓貴, 高野祥汰, 仲田晋, 鈴木友彰

    第37回日本冠疾患学会学術集会　2024/11/30

  19. Analysis of computational fluid dynamics simulating stenotic lesions of coronary end-to-side anastomosis using an ex-vivo porcine heart

    ISMICS 2024 WORKSHOP　2024/11/09

  20. Integrated volume and surface graphics for facilitated measurement of cardiac anatomy

    2024/11/09

  21. Ex-vivo冠動脈バイパスモデルを用いた端側吻合における狭窄病変の数値流体解析

    第77回日本胸部外科学会定期学術集会　2024/11/03

  22. ハイブリッドレンダリング技術を用いた心臓の複雑構造における定量的計測の有用性

    第77回日本胸部外科学会定期学術集会　2024/11/02

  23. Integrated volume and surface graphics for facilitated measurement of cardiac anatomy

    2024/04/18

  24. ハイブリッドレンダリング技術を用いた大動脈基部Geometryの3次元解析法

    神谷賢一, 永谷幸裕, 松林優児, 寺田真也, 高島範之, 仲田晋, 鈴木友彰

    第54回日本心臓血管外科学会学術総会　2024/02/23

  25. 3D画像が開く、surgical operationの新たな視点

    神谷賢一

    第6回 ヘルスケアイノベーションコースオフィシャルミーティング 演繹と帰納を繋ぐ試行　2024/02/17

  26. 3次元ハイブリッド画像技術を用いた弁膜症手術シミュレーション

    神谷賢一, 永谷幸裕, 松林優児, 寺田真也, 高島範之, 藤井太平, 仲田晋, 鈴木友彰

    第36回日本冠疾患学会学術集会　2023/11/25

  27. 最先端ハイブリッドレンダリング技術を用いた3次元画像解析法

    神谷賢一, 永谷幸裕, 松林優児, 寺田真也, 高島範之, 藤井太平, 仲田晋, 鈴木友彰

    第36回日本冠疾患学会学術集会　2023/11/25

  28. Integrated volume and surface graphics for facilitated measurement of cardiac anatomy

    2023/10/21

  29. 最先端3次元イメージングシステム -Vesalius 3Dによる心臓血管外科領域への応用- Invited

    神谷賢一

    東近江循環器カンファレンス　2023/07/27

  30. 三次元ハイブリッドレンダリング技術を用いた弁膜症手術の術前シミュレーション

    神谷賢一, 永谷幸裕, 松林優児, 寺田真也, 角宏明, 島田ゆうじ, 松岡健太郎, 脇坂穂高, 鉢呂康平, 森本政憲, 榎本匡秀, 高島範之, 藤井太平, 仲田晋, 鈴木友彰

    第66回関西胸部外科学会学術集会　2023/06/09

  31. Innovative four-dimensional virtual-reality imaging technology in cardiovascular surgery

    2023/04/29

  32. 胸部大動脈手術における三次元VR画像を用いた 術前シミュレーションの有用性

    第53回日本心臓血管外科学会学術総会　2023/03/25

  33. 医学教育における VR 技術活用：Vesalius 3D Invited

    滋賀医科大学大学院医学研究科, 湖東記念病院, 心臓血管外科, 神谷 賢一

    第4回ヘルスケアイノベーションコースオフィシャルミーティング イノベーション興す Requirements　2023/03/18

  34. 心臓血管外科における三次元VR画像技術の有用性 Invited

    神谷賢一

    第15回 3D PACS研究会　2023/01/09

  35. 心臓血管外科における新たなイメージングシステム -四次元バーチャルリアリティー画像解析の精度の検証- Invited

    第22回日本術中画像情報学会　2022/07/02

  36. Innovative surgical training system using an ex-vivo swine heart mock-simulator combined with virtual-reality imaging technology

    2022/04/16

  37. Validation of virtual reality imaging accuracy of dynamic, functioning heart valves using an ex-vivo porcine heart.

    Kenichi Kamiya, Yukihiro Nagatani, Shinya Terada, Yuji Matsubayashi, Shunta Miwa, Yotaro Mori, Masahide Enomoto, Naoshi Minamidate, Noriyuki Takashima, Taihei Fujii, Susumu Nakata, Tomoaki Suzuki

    The 30th Annual Meeting of the Asian Society for Cardiovascular and Thoracic Surgery　2022/03/27

  38. A virtual-reality imaging analysis of the dynamic aortic root anatomy

    Kenichi Kamiya, Yukihiro Nagatani, Shinya Terada, Yuji Matsubayashi, Shunta Miwa, Yotaro Mori, Masahide Enomoto, Naoshi Minamidate, Noriyuki Takashima, Taihei Fujii, Susumu Nakata, Tomoaki Suzuki

    The 30th Annual Meeting of the Asian Society for Cardiovascular and Thoracic Surgery　2022/03/27

  39. How accurate;are;the VR images;Reconstructed virtual imaging;validation using;an;ex-vivo;porcine heart

    2022/03/04

  40. Virtual reality技術の臨床応用に向けた三次元解析の信頼性の検証

    神谷賢一, 永谷幸裕, 寺田真也, 松林優児, 三輪駿太, 森陽太郎, 脇坂穂高, 榎本匡秀, 南舘直志, 高島範之, 藤井太平, 仲田晋, 鈴木友彰

    第35回日本冠疾患学会学術集会　2021/12/17

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Research Projects 8

  1. 三次元数値流体計算による冠動脈バイパス吻合モデルの血流シミュレーション

    神谷 賢一

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 基盤研究(C)

    Institution: 滋賀医科大学

    2026/04/01 - 2029/03/31

  2. CGとシミュレーション技術の心臓血管外科への応用

    仲田 晋, 神谷 賢一

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 基盤研究(C)

    Institution: 立命館大学

    2024/04 - 2028/03

  3. ハイブリッドレンダリング技術を用いた三次元画像解析法の確立

    神谷賢一, 永谷幸裕, 仲田晋, 松林優児

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業 基盤研究(C)

    Category: 日本学術振興会 科学研究費助成事業 基盤研究 (C)

    Institution: 滋賀医科大学

    2023/04 - 2026/03

  4. Clinical Implementation of 3D Hybrid Rendering–Based Image Analysis for the Standardization of Valve-Sparing Cardiac Surgery

    Institution: Division of Cardiovascular Surgery, Tohoku University Graduate School of Medicine

    2025 - 2026

  5. Ex vivo冠動脈バイパスモデルを用いた3次元数値流体解析法の確立

    Category: 滋賀医科大学 令和6年度学長裁量経費（若手萌芽研究）

    Institution: 滋賀医科大学 心臓血管外科/放射線科, 立命館大学 情報理工学部

  6. 3次元数値流体解析を用いた冠動脈バイパス血流シミュレーション

    Category: 滋賀医科大学 令和５年度学長裁量経費（若手萌芽研究）

    Institution: 滋賀医科大学 心臓血管外科/放射線科, 立命館大学 情報理工学部/総合科学技術研究機構

  7. 三次元Virtual Reality技術(3D-VR)による新たな画像解析法の確立

    Offer Organization: 滋賀医科大学

    System: 令和４年度学長裁量経費研究助成 （若手萌芽研究）

    Institution: 滋賀医科大学 心臓血管外科/放射線科, 立命館大学 情報理工学部/総合科学技術研究機構

  8. Virtual reality (VR)技術の臨床応用に向けた三次元解析の信頼性

    Offer Organization: 滋賀医科大学

    System: 令和３年度 学長裁量経費研究助成 （若手萌芽研究）

    Institution: 滋賀医科大学 心臓血管外科/放射線科, 立命館大学 情報理工学部/総合科学技術研究機構

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Teaching Experience 4

  1. ヘルスケアイノベーション履修証明プログラム (医用工学)　高知大学大学院 連繋医工学分野

  2. 臨床解剖学（大血管・心臓）　滋賀医科大学 医学部

  3. 循環器系統講義　滋賀医科大学 医学部

  4. 基礎人体機能構造学　滋賀医科大学 医学部

Other 5

  1. The Tri-Council Policy Statement: Ethical Conduct for Research Involving Humans (TCPS 2: CORE 2022), Canadian Institutes of Health Research | Instituts de recherche en santé du Canada

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    The Canadian Institutes of Health Research (CIHR) is the Government of Canada's health research investment agency. CIHR's mission is to create new scientific knowledge and to enable its translation into improved health, more effective health services and products, and a strengthened health care system for Canadians. Composed of 13 Institutes, CIHR provides leadership and support to more than 13,700 health researchers and trainees across Canada. Terms and Conditions: http://www.cihr-irsc.gc.ca/e/14202.html

  2. Health Canada Division 5 – Drugs For Clinical Trials Involving Human Subjects (CITI Program)

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    Training on Health Canada Division 5 regulations governing drugs used in clinical trials involving human subjects. Covers regulatory requirements for clinical trial applications, investigational drug accountability, safety reporting, and compliance.

  3. CITI Program

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    CITI Program was established in 2000 and is a leading global online education provider. Its web-based training materials serve millions of learners and thousands of subscribing institutions. CITI Program is dedicated to serving the training needs of colleges and universities, healthcare institutions, technology and research organizations, and governmental agencies, as they foster integrity and professional advancement of their learners. CITI Program is the preeminent leader in online research, ethics, compliance, and safety training. It has trained researchers globally for over 20 years at thousands of academic, research, and healthcare organizations. CITI Program is a dynamic and collegial working environment with opportunities to bring forth new educational materials that support learners and institutions in the U.S. and around the world. CITI Program joined the Biomedical Research Alliance of New York (BRANY) in 2016. BRANY was founded in 1998 and is jointly owned by four leading academic medical centers - NYU School of Medicine, Montefiore Medical Center, Icahn School of Medicine, and Northwell Health. BRANY is also a premier resource for research support services for hospitals, academic medical centers, and investigators, among its other ventures.

  4. 滋賀医学国際協力会 医学系研究者 海外渡航助成

  5. 滋賀医科大学外科同門会 短期海外留学支援