医学
传统PCI
经皮冠状动脉介入治疗
灌注
部分流量储备
心肌灌注成像
灌注扫描
放射科
心脏病学
冠状动脉疾病
内科学
血管造影
闭塞
计算机断层血管造影
人口
冠状动脉闭塞
冠状动脉造影
心肌梗塞
环境卫生
作者
Jacek Kwieciński,Anna Oleksiak,Mariusz Kruk,Antoni Zyśk,Artur Dębski,Paul Knaapen,Stefan Schumacher,Umberto Barbero,Adam Witkowski,Cezary Kępka,Maksymilian P. Opolski
出处
期刊:Atherosclerosis
[Elsevier]
日期:2023-09-01
卷期号:381: 117174-117174
被引量:3
标识
DOI:10.1016/j.atherosclerosis.2023.06.080
摘要
Background and aims Myocardial perfusion imaging (MPI) and anatomical imaging with coronary computed tomography angiography (CCTA) can play an important role in the preprocedural planning of a chronic total occlusion (CTO) percutaneous coronary intervention (PCI). We aimed to establish the feasibility of a novel dynamic computed tomography perfusion (CTP) analysis for the assessment of myocardial perfusion before and after a successful recanalization of CTO in patients undergoing CCTA as part of a standard preprocedural workup. Methods In a prospective observational study symptomatic patients underwent dynamic CTP on a dual-source CT scanner both before and 3 months after successful CTO PCI. Results Twenty-seven patients completed the study (63 ± 8 years old, 78% male). Following successful CTO PCI, there was a significant reduction in the ischemic burden (5 [5–7] versus 1 [0–2] segments, p < 0.001), and improvement in myocardial blood flow (85.3 [71.7–94.1] versus 134.6 [123.8–156.9] mL/min, p < 0.001) resulting in an increase in the relative flow reserve (0.49 [0.41–0.57] versus 0.88 [0.74–0.95], p < 0.001). Conclusions CTP emerges as a robust and safe method for MPI in CTO patients. The single imaging session assessment of both coronary anatomy and perfusion with CT lends itself to precise disease phenotyping in the challenging population of CTO patients.
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