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Journal of cardiovascular computed tomography最新文献

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Asessing the feasibility and accuracy of an on-site prototype workstation in assessing CT derived fractional flow reserve in severe aortic stenosis. 评估现场原型工作站在评估 CT 导出的重度主动脉瓣狭窄患者血流储备分数方面的可行性和准确性。
Journal of cardiovascular computed tomography
Pub Date : 2024-11-13 DOI: 10.1016/j.jcct.2024.10.015
Harsh V Thakkar, Sean Tan, Jasmine Chan, Abdul R Ihdayhid, Michael Michail, Adam J Brown, Brian Ko
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引用次数: 0
Diagnostic performance of CCTA and CTP imaging for clinically suspected in-stent restenosis: A meta-analysis. CCTA 和 CTP 成像对临床疑似支架内再狭窄的诊断性能：荟萃分析
Journal of cardiovascular computed tomography
Pub Date : 2024-11-06 DOI: 10.1016/j.jcct.2024.10.014
Jorge Dahdal, Ruurt A Jukema, Sharon Remmelzwaal, Pieter G Raijmakers, Pim van der Harst, Marco Guglielmo, Maarten J Cramer, Steven A J Chamuleau, Pepijn A van Diemen, Paul Knaapen, Ibrahim Danad

Aims: The objective of this study is to conduct a meta-analysis to assess the diagnostic performance of Coronary Computed Tomography Angiography (CCTA) and a hybrid approach that incorporates Computed Tomography Perfusion (CTP) in addition to CCTA (CCTA ​+ ​CTP) for the detection of in-stent restenosis (ISR), as defined by angiography.

Methods: A comprehensive search of articles identified 18,513 studies. After removing duplicates, title/abstract screening, and full-text review, 17 CCTA and 3 CCTA ​+ ​CTP studies were included. Only studies using ≥64-slices multidetector computed tomography (CT) were considered eligible.

Results: The per-patient ISR prevalence was 43 ​%, with 92 ​% of stents fully interpretable with CCTA. Meta-analysis exhibited a per-stent CCTA (n ​= ​2674) sensitivity of 90 ​% (95 ​% CI; 84-94 ​%), specificity of 89 ​% (95 ​% CI; 86-92 ​%), positive likelihood ratio of 7.17 (95 ​% CI; 5.24-9.61), negative likelihood ratio of 0.17 (95 ​% CI; 0.10-0.25), and diagnostic odds ratio of 45.7 (95 ​% CI; 22.71-82.43). Additional sensitivity analyses revealed no influence of stent diameter or strut thickness on the diagnostic yield of CCTA. The per-stent diagnostic performance of CCTA ​+ ​CTP (n ​= ​752) did not show differences compared to CCTA.

Conclusions: With currently utilized scanners, CCTA and CCTA ​+ ​CTP demonstrated high diagnostic performance for in-stent restenosis evaluation. Consequently, a history of previous stent implantation should not be an argument to preclude using these methods in clinically suspected patients.

目的：本研究旨在进行一项荟萃分析，评估冠状动脉计算机断层扫描血管造影术（CCTA）和在CCTA基础上结合计算机断层扫描灌注术（CTP）的混合方法（CCTA + CTP）在检测血管造影定义的支架内再狭窄（ISR）方面的诊断性能：方法：对文章进行全面检索，共发现 18,513 项研究。在去除重复、标题/摘要筛选和全文审阅后，纳入了 17 项 CCTA 和 3 项 CCTA + CTP 研究。只有使用≥64切片多载体计算机断层扫描（CT）的研究才符合条件：结果：每位患者的 ISR 发生率为 43%，其中 92% 的支架可通过 CCTA 完全解读。元分析显示，每个支架的 CCTA（n = 2674）灵敏度为 90 %（95 % CI；84-94 %），特异性为 89 %（95 % CI；86-92 %），阳性似然比为 7.17（95 % CI；5.24-9.61），阴性似然比为 0.17（95 % CI；0.10-0.25），诊断几率比为 45.7（95 % CI；22.71-82.43）。其他敏感性分析显示，支架直径或支架厚度对 CCTA 的诊断率没有影响。与CCTA相比，CCTA + CTP（n = 752）对每个支架的诊断效果没有差异：结论：利用目前使用的扫描仪，CCTA 和 CCTA + CTP 在评估支架内再狭窄方面具有很高的诊断性能。因此，既往支架植入史不应成为临床疑似患者不使用这些方法的理由。
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引用次数: 0
Temporal trend and regional disparity in the investigations for stable chest pain in Europe: An insight from the PIONEER IV trial. 欧洲稳定型胸痛调查的时间趋势和地区差异：PIONEER IV 试验的启示。
Journal of cardiovascular computed tomography
Pub Date : 2024-10-11 DOI: 10.1016/j.jcct.2024.10.002
Tsung-Ying Tsai, Patrick W Serruys, Joanna Wykrzykowska, Faisal Sharif, Liesbeth Rosseel, Edouard Benit, Mohammad Alkhalil, Kenneth De Wilder, Nick Curzen, Mick Renkens, Pruthvi C Revaiah, Andreas Baumbach, Pieter C Smits, Patrick Nash, Scot Garg, Marc Dewey, Thomas F Lüscher, Yoshinobu Onuma

Coronary CT angiography (CCTA) and fractional flow reserve with CCTA (FFRCT) have been endorsed by the ACC/AHA Chest Pain guidelines to streamline the diagnosis of coronary artery disease (CAD), but there is still a significant lack of adherence. In our study of 673 stable chest patients without known CAD from 5 European countries, we found that CCTA is the most common noninvasive diagnostic test, but nearly 40 ​% of them still underwent upfront CAD. Additionally, there was no temporal improvement trend, and the integration of FFRCT is low. We highlighted the urgent need to improve diagnostic processes and update reimbursement policies.

冠状动脉 CT 血管造影 (CCTA) 和冠状动脉 CTA 分形血流储备 (FFRCT) 已被 ACC/AHA 胸痛指南批准用于简化冠状动脉疾病（CAD）的诊断，但仍存在严重的缺乏性。我们对来自 5 个欧洲国家的 673 名无已知 CAD 的稳定胸痛患者进行了研究，发现 CCTA 是最常见的无创诊断检查，但其中仍有近 40% 的患者接受了前期 CAD 检查。此外，CCTA 在时间上没有改善的趋势，而 FFRCT 的整合率也很低。我们强调了改进诊断流程和更新报销政策的迫切性。
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引用次数: 0
A new business paradigm to make coronary CT angiography (CCTA) accessible to all. 让所有人都能接受冠状动脉 CT 血管造影术 (CCTA) 的新商业模式。
Journal of cardiovascular computed tomography
Pub Date : 2024-09-28 DOI: 10.1016/j.jcct.2024.09.008
Ed Nicol, Mark Ibrahim, Benjamin J Cohen, Jonathan R Weir McCall, Ron Blankstein, Leslee J Shaw

Recently, the Centers for Medicare and Medicaid proposed a classification change that, if enacted, could double reimbursement for coronary CT angiography (CCTA) in the U.S. [1]. With this comes the potential to realistically build an economically viable and sustainable model to deliver cardiac CT outside of major urban (hospital and private practice) and academic centers. The value of CCTA in reducing cardiovascular morbidity and mortality has been demonstrated in large, randomized control trials and real-world studies, but access to CCTA in rural, socially deprived, and low-resource settings (including poorer urban areas with a lack of specialist equipment and specialty-based services) remains a significant challenge. This paper discusses the end-to-end business aspects required to deliver a sustainable cardiac CT service in these areas, exploring technologist-delivered services, with remote support from physicians, and the potential to leverage developing artificial intelligence (AI) decision aid tools and mobile scanners.

最近，美国医疗保险和医疗补助中心（Centers for Medicare and Medicaid）提出了一项分类改革建议，如果该建议获得通过，美国冠状动脉 CT 血管造影术（CCTA）的报销额度将增加一倍[1]。这样一来，就有可能在主要城市（医院和私人诊所）和学术中心之外建立一种经济上可行且可持续的心脏 CT 服务模式。CCTA 在降低心血管疾病发病率和死亡率方面的价值已在大型随机对照试验和实际研究中得到证实，但在农村、社会贫困地区和资源匮乏地区（包括缺乏专业设备和专科服务的较贫困城市地区）获得 CCTA 仍是一项重大挑战。本文讨论了在这些地区提供可持续的心脏 CT 服务所需的端到端业务方面，探讨了由技术专家提供的服务、医生的远程支持以及利用开发中的人工智能 (AI) 决策辅助工具和移动扫描仪的潜力。
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引用次数: 0
Cardiac hydatid cyst causing coronary arterial compression. 心脏水瘤囊肿导致冠状动脉受压。
Journal of cardiovascular computed tomography
Pub Date : 2024-09-21 DOI: 10.1016/j.jcct.2024.09.006
Nataraju Komallama Girish, Damandeep Singh, Niraj Nirmal Pandey, Aprateem Mukherjee, Rakesh Yadav, Priya Jagia
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引用次数: 0
Distribution Of Coronary Plaque Subtypes Among Races Quantified By Automated Coronary Plaque Analysis 通过自动冠状动脉斑块分析量化不同种族冠状动脉斑块亚型的分布情况
Journal of cardiovascular computed tomography
Pub Date : 2024-07-01 DOI: 10.1016/j.jcct.2024.05.169
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
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引用次数: 0
Comprehensive Assessment Of CT Hounsfield Unit Variation Within Patients, Scanners, And Integrated Measures 全面评估患者、扫描仪和综合措施中的 CT Hounsfield 单位差异
Journal of cardiovascular computed tomography
Pub Date : 2024-07-01 DOI: 10.1016/j.jcct.2024.05.150
S. Krishnan, D. Li, S. Mao, F. Flores, Y. Gao, S. Luo, M. Budoff
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引用次数: 0
Optimal Threshold For Characterizing Calcified Plaque On Ccta As Determined By Correlation With Oct 通过与 Oct 的相关性确定 Ccta 上钙化斑块的最佳阈值
Journal of cardiovascular computed tomography
Pub Date : 2024-07-01 DOI: 10.1016/j.jcct.2024.05.189
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
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引用次数: 0
Fully Automated Functional Assessment Of Pre-procedural Cardiac Ct Predicts Outcome In Transcatheter Aortic Valve Replacement Candidates 全自动心脏 CT 术前功能评估可预测经导管主动脉瓣置换术候选者的结果
Journal of cardiovascular computed tomography
Pub Date : 2024-07-01 DOI: 10.1016/j.jcct.2024.05.202
G. Tremamunno, A. Varga-Szemes, U. Schoepf, E. Zsarnóczay, G. Aquino, J. O'Doherty, M. Vecsey-Nagy, T. Emrich
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引用次数: 0
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) 人工智能支持的冠状动脉钙扫描中的骨矿物质密度测量与高冠状动脉钙有关，与常规风险因素无关：多种族动脉粥样硬化研究 (mesa)
Journal of cardiovascular computed tomography
Pub Date : 2024-07-01 DOI: 10.1016/j.jcct.2024.05.139
K. Atlas, C. Zhang, A. Reeves, D. Li, T. Atlas, M. Budoff, M. Naghavi
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引用次数: 0
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