Abazid Rami M, Sallam Yasmine T, Romsa Jonathan G, Warrington James C, Akincioglu Cigdem, De Sabe, Tzemos Nikolaos, Vezina William C
Division of Nuclear Medicine, Section of Cardiac Hybrid Imaging, Victoria Hospital, London Health Sciences Centre, 800 Commissioners Road East, PO Box 5010, London, ON, N6A 5W9, Canada.
Division of Medical Imaging, Northern Ontario School of Medicine, Sudbury, ON, Canada.
Eur J Hybrid Imaging. 2022 Feb 1;6(1):3. doi: 10.1186/s41824-021-00124-z.
We present this case series exploring the complementary role of coronary computed tomography angiography (CCTA) to SPECT myocardial perfusion imaging (MPI) in the detection of myocardial necrosis.
A cardiac hybrid imaging database search identified 144 patients with a previous history of ST-segment elevation myocardial infarction treated with coronary revascularization. CCTA and MPI scans were evaluated to determine whether CCTA had an added value to MPI in detecting myocardial necrosis.
Five patients with patent stents and/or bypass grafts and both fixed perfusion defects on MPI and sub-endocardial hypo-perfusion on CCTA were identified. The extent and location of the perfusion defects were closely correlated between the CCTA and SPECT MPI images.
In this series, CCTA and SPECT MPI were found to play a complementary role in the assessment of fixed perfusion defect, with CCTA adding specificity to the diagnosis of myocardial necrosis.
我们展示这个病例系列，探讨冠状动脉计算机断层扫描血管造影（CCTA）在检测心肌坏死方面对单光子发射计算机断层扫描心肌灌注成像（MPI）的补充作用。
通过心脏混合成像数据库搜索，确定了144例曾有ST段抬高型心肌梗死病史并接受冠状动脉血运重建治疗的患者。对CCTA和MPI扫描进行评估，以确定CCTA在检测心肌坏死方面是否对MPI具有附加价值。
识别出5例支架和/或搭桥血管通畅、MPI显示固定灌注缺损且CCTA显示心内膜下灌注减低的患者。CCTA和单光子发射计算机断层扫描MPI图像上灌注缺损的范围和位置密切相关。
在本系列研究中，发现CCTA和单光子发射计算机断层扫描MPI在评估固定灌注缺损方面发挥互补作用，CCTA增加了心肌坏死诊断的特异性。
