Journal of cardiovascular computed tomography最新文献

{"title":"RedoTAVR coronary obstruction risk in small annuli: A post-TAVR CT study.","authors":"Gaetano Liccardo, Ioannis Skalidis, Luca Esposito, Nicolas Amabile, Hakim Benamer, Stephane Champagne, Bernard Chevalier, Livio D'Angelo, Jerome Garot, Philippe Garot, Thomas Hovasse, Pietro Laforgia, Francesca Sanguineti, Neila Sayah, Thierry Unterseeh, Mariama Akodad, Antoinette Neylon","doi":"10.1016/j.jcct.2026.04.002","DOIUrl":"https://doi.org/10.1016/j.jcct.2026.04.002","url":null,"abstract":"<p><strong>Introduction: </strong>Redo-transcatheter aortic valve replacement (redoTAVR) is increasingly relevant as younger patients undergo TAVR. Patients with small annuli may present anatomical constraints.</p><p><strong>Methods: </strong>This study evaluated predicted coronary obstruction (CO) risk in case of redoTAVR in small versus non-small annuli using post-TAVR computed tomography (CT) in patients treated by supra-annular self-expanding valves (SEVs) or balloon-expandable valves (BEVs). 167 post-TAVR CT scans were analyzed. Patients were stratified into small annuli (≤430 ​mm²) and non-small annuli groups (>430 ​mm²). Risk plane for redoTAVR was assessed at node 4, 5 and 6 for SEVs and at the transcatheter heart valve (THV) outflow for BEVs. The minimal valve-to-coronary (VTC) and valve-to-aorta (VTA) distances were measured from the THV to the left main stem (LM)/right coronary artery (RCA) ostia and from the THV to the aorta above the LM/RCA respectively. High CO risk was defined as VTC <4 ​mm or VTA <2 ​mm when the coronary ostium lay below the risk plane.</p><p><strong>Results: </strong>In small annuli, SEVs were associated with increased predicted CO risk after redoTAVR compared to BEVs, considering risk plane at node 6 (OR ​= ​15.52, p ​< ​0.001) or node 5 (OR ​= ​3.13, p ​= ​0.03), while not at node 4. In non-small annuli, SEVs did not increase predicted CO risk versus BEVs.</p><p><strong>Conclusion: </strong>Predicted CO risk at redoTAVR in small annuli depends on index valve type and redo implantation height. Our findings support accurate index-procedure planning and meticulous planning and execution of redoTAVR, particularly in small annuli.</p>","PeriodicalId":94071,"journal":{"name":"Journal of cardiovascular computed tomography","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147793090","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Rationale and design of the MAPS trial: A nationwide multicenter prospective validation of CT-derived index of microcirculatory resistance for precision ischemia management.","authors":"Dan Deng, Chen Wan, Yan Lu, Anbang Wang, Xiujian Liu, Zhifan Gao, Haoran Qin, Min Zeng, Shuhui Chen, Yanxiu Chen, Xiaolong Li, Yang Zhou, Wei Chen, Dali Yi, Heye Zhang, William Kongto Hau, Zhihui Zhang","doi":"10.1016/j.jcct.2026.04.001","DOIUrl":"https://doi.org/10.1016/j.jcct.2026.04.001","url":null,"abstract":"<p><strong>Background: </strong>Coronary microvascular dysfunction (CMD) is a common, underdiagnosed cause of ischemia linked to adverse cardiovascular outcomes. However, the lack of a direct, readily accessible non-invasive diagnostic tool hampers its timely identification and management. We developed IMR_CT-a non-invasive, CT-derived index of microcirculatory resistance based on computational fluid dynamics (CFD)-enabling comprehensive hemodynamic phenotyping from a single coronary CT angiography (CCTA) examination.</p><p><strong>Objectives: </strong>The MAPS trial is a nationwide, multicenter, prospective study. The primary objective is to evaluate the sensitivity and specificity of IMR_CT for identifying CMD, using invasively measured index of microcirculatory resistance (IMR) as the reference standard. Secondary objectives include assessing the prognostic value of IMR_CT for major adverse cardiovascular events (MACE). Exploratory analyses will assess the agreement of CT-derived coronary flow reserve (CFR_CT) and microvascular resistance reserve (MRR_CT) with their invasive counterparts.</p><p><strong>Methods: </strong>A total of 630 patients referred for clinically indicated invasive coronary physiology assessment will be enrolled. All patients will undergo CCTA followed by invasive measurements of IMR and CFR, and relevant pressure/flow parameters. Patient-specific 3D models and CFD simulations will be used to compute IMR_CT, CFR_CT and MRR_CT. All participants will be followed every six months for ≥2 years to assess MACE and symptom progression.</p><p><strong>Summary: </strong>The MAPS trial is designed to establish IMR_CT as a non-invasive window into coronary microvascular physiology and a potential tool for physiology-guided therapy and longitudinal monitoring through repeat CCTA.</p>","PeriodicalId":94071,"journal":{"name":"Journal of cardiovascular computed tomography","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147719284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Transcatheter heart valve expansion, implant depth and repeatability in TAVR for pure native aortic regurgitation.","authors":"Emmanuel Gall, Thomas Hovasse, Antoinette Neylon, Pietro Laforgia, Fabien Picard, Jonathon A Leipsic, Victor Boilève, Vincent Humeau, Jérôme Garot, Philippe Garot, Mariama Akodad","doi":"10.1016/j.jcct.2026.03.008","DOIUrl":"https://doi.org/10.1016/j.jcct.2026.03.008","url":null,"abstract":"","PeriodicalId":94071,"journal":{"name":"Journal of cardiovascular computed tomography","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147597195","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Severe left main and ostial right coronary obstruction with supra aortic valve atherosclerotic stenosis in a 16 Year old patient with familial hypercholesterolemia: A case report.","authors":"Osama A Smettei, Rami Abazid, Mohammad O Kattea, Tawfeeq H Alharbi","doi":"10.1016/j.jcct.2026.03.004","DOIUrl":"https://doi.org/10.1016/j.jcct.2026.03.004","url":null,"abstract":"","PeriodicalId":94071,"journal":{"name":"Journal of cardiovascular computed tomography","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147535275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Post-TAVR evaluation using photon-counting detector CT with only 10 mL of contrast media: A case report.","authors":"Takuto Katayama, Sho Torii, Norihiko Kamioka, Junichi Miyamoto, Yohei Ohno","doi":"10.1016/j.jcct.2026.02.008","DOIUrl":"https://doi.org/10.1016/j.jcct.2026.02.008","url":null,"abstract":"","PeriodicalId":94071,"journal":{"name":"Journal of cardiovascular computed tomography","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147438502","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Distribution Of Coronary Plaque Subtypes Among Races Quantified By Automated Coronary Plaque Analysis","authors":"M. Erbay, S. Susarla, D. Lee, V. Manubolu, A. Kinninger, H. Sandhu, D. Behjatnia, O. Bikhazi, K. Ngo, A. Jung, I. Yusufu, T. Ahmad, Budoff M","doi":"10.1016/j.jcct.2024.05.169","DOIUrl":"https://doi.org/10.1016/j.jcct.2024.05.169","url":null,"abstract":"","PeriodicalId":94071,"journal":{"name":"Journal of cardiovascular computed tomography","volume":"130 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141709023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comprehensive Assessment Of CT Hounsfield Unit Variation Within Patients, Scanners, And Integrated Measures","authors":"S. Krishnan, D. Li, S. Mao, F. Flores, Y. Gao, S. Luo, M. Budoff","doi":"10.1016/j.jcct.2024.05.150","DOIUrl":"https://doi.org/10.1016/j.jcct.2024.05.150","url":null,"abstract":"","PeriodicalId":94071,"journal":{"name":"Journal of cardiovascular computed tomography","volume":"136 40","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141713783","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimal Threshold For Characterizing Calcified Plaque On Ccta As Determined By Correlation With Oct","authors":"D. Chamie, R. Okubo, Y. Sobue, U. Kaneko, H. Sato, S. Fujimoto, Y. Nozaki, T. Kajiya, T. Miyoshi, K. Ichikawa, M. Abe, T. Kitagawa, H. Ikenaga, K. Osawa, M. Saji, N. Iguchi, G. Nakazawa, K. Takahashi, T. Ijich, H. Mikamo, A. Kurata, M. Moroi, R. Iijima, A. Lansky, A. Demuyakor, H. Matsuo, U. Hoffmann, J. Min, J. Earls, R. Nakanishi","doi":"10.1016/j.jcct.2024.05.189","DOIUrl":"https://doi.org/10.1016/j.jcct.2024.05.189","url":null,"abstract":"","PeriodicalId":94071,"journal":{"name":"Journal of cardiovascular computed tomography","volume":"22 36","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141699837","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fully Automated Functional Assessment Of Pre-procedural Cardiac Ct Predicts Outcome In Transcatheter Aortic Valve Replacement Candidates","authors":"G. Tremamunno, A. Varga-Szemes, U. Schoepf, E. Zsarnóczay, G. Aquino, J. O'Doherty, M. Vecsey-Nagy, T. Emrich","doi":"10.1016/j.jcct.2024.05.202","DOIUrl":"https://doi.org/10.1016/j.jcct.2024.05.202","url":null,"abstract":"","PeriodicalId":94071,"journal":{"name":"Journal of cardiovascular computed tomography","volume":"41 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141708713","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"AI-enabled Bone Mineral Density Measurement In Coronary Artery Calcium Scans Associated With High Coronary Artery Calcium Independently Of Conventional Risk Factors: Multi-ethnic Study Of Atherosclerosis (mesa)","authors":"K. Atlas, C. Zhang, A. Reeves, D. Li, T. Atlas, M. Budoff, M. Naghavi","doi":"10.1016/j.jcct.2024.05.139","DOIUrl":"https://doi.org/10.1016/j.jcct.2024.05.139","url":null,"abstract":"","PeriodicalId":94071,"journal":{"name":"Journal of cardiovascular computed tomography","volume":"11 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141703480","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}