冠状动脉CT血管造影在自发性冠状动脉夹层中的作用。
Role of Coronary CT Angiography in Spontaneous Coronary Artery Dissection.
作者信息
Gupta Sumit, Meyersohn Nandini M, Wood Malissa J, Steigner Michael L, Blankstein Ron, Ghoshhajra Brian B, Hedgire Sandeep S
机构信息
Department of Radiology, Cardiovascular Division (S.G., N.M.S., B.B.G., S.S.H.), and Department of Medicine, Cardiology Division (M.J.W.), Massachusetts General Hospital, 55 Fruit St, Boston, MA 02114; Department of Radiology (M.L.S.) and Department of Medicine, Cardiovascular Division (R.B.), Brigham and Women's Hospital, Boston, Mass.
出版信息
Radiol Cardiothorac Imaging. 2020 Nov 19;2(6):e200364. doi: 10.1148/ryct.2020200364. eCollection 2020 Dec.
Abstract
Spontaneous coronary artery dissection (SCAD) is more common than previously thought and is present in up to 4% of patients presenting with acute coronary syndrome. SCAD predominantly occurs in relatively young women and is an important cause of myocardial infarction in young patients without traditional risk factors of atherosclerotic coronary artery disease. There have been substantial improvements in spatial and temporal resolution and reduction in ionizing radiation dose with new generation scanners. The risk of dissection propagation with an invasive coronary angiogram, improved CT scanner parameters, and predominantly conservative management of SCAD make coronary CT angiography a useful noninvasive imaging modality for the assessment of SCAD. © RSNA, 2020.
摘要
自发性冠状动脉夹层（SCAD）比之前认为的更为常见，在急性冠状动脉综合征患者中占比高达4%。SCAD主要发生在相对年轻的女性中，是无动脉粥样硬化性冠状动脉疾病传统危险因素的年轻患者发生心肌梗死的重要原因。新一代扫描仪在空间和时间分辨率方面有了显著提高，同时降低了电离辐射剂量。侵入性冠状动脉血管造影导致夹层扩展的风险、CT扫描仪参数的改善以及SCAD主要采用保守治疗，使得冠状动脉CT血管造影成为评估SCAD的一种有用的非侵入性成像方式。© RSNA，2020。
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