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临床医药

CMR灌注成像定量评估SCAD患者冠脉病变及微循环的临床研究

  • 闫军
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  • 山西医科大学附属运城市中心医院,山西 运城 044000
闫军,男,主治医师,研究方向:心血管内科临床研究

收稿日期: 2025-02-23

  修回日期: 2025-09-10

  录用日期: 2025-12-24

  网络出版日期: 2025-12-24

基金资助

山西省卫生健康委科研课题(2022023)

Clinical Study on Quantitative Evaluation of Coronary Lesions and Microcirculation in Patients with SCAD by CMR Perfusion Imaging

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  • Yuncheng Central Hospital Affiliated to Shanxi Medical University Shanxi Yuncheng 044000, China

Received date: 2025-02-23

  Revised date: 2025-09-10

  Accepted date: 2025-12-24

  Online published: 2025-12-24

摘要

目的:探究心脏磁共振(CMR)灌注成像对稳定性冠心病(SCAD)患者冠脉病变及微循环的定量评估价值。方法:随机选取20231月至20241月我院收治的90SCAD患者作为研究对象,所有患者均接受CMR灌注成像检查,并以冠状动脉造影检查结果作为金标准,分析CMR灌注成像检查对SCAD患者冠脉病变的诊断符合率。根据冠脉造影结果评估冠脉狭窄程度,将轻中度狭窄患者(冠脉狭窄率≤75%)纳入轻中度组,重度狭窄患者(冠脉狭窄率>75%)纳入重度组,比较不同冠脉狭窄程度SCAD患者的CMR灌注参数差异。根据冠脉造影结果评估微循环障碍,将存在微循环障碍的患者纳入障碍组,无微循环障碍的患者纳入无障碍组,比较两组患者的灌注参数差异。结果:CMR灌注成像对左前降支(LAD)、右冠状动脉(RCA)、左回旋支(LCX)病变的诊断符合率与冠脉造影比较,差异均无统计学意义(P>0.05)。冠脉造影结果显示,90SCAD患者中,41例为轻中度狭窄患者,49例为重度狭窄患者;重度组的首过灌注时间、心肌延迟强化信号均高于轻中度组,首过灌注最大上升斜率(slopemax)低于轻中度组(P<0.05);90SCAD患者中,24例患者存在微循环障碍;障碍组的首过灌注时间、心肌延迟强化信号均高于无障碍组,slopemax低于无障碍组(P<0.05)。结论:CMR灌注成像能够准确诊断SCAD患者的冠脉病变,并且可定量分析患者的冠脉病变及微循环障碍,为临床中SCAD患者的评估提供一定借鉴和参考。


本文引用格式

闫军 .

CMR灌注成像定量评估SCAD患者冠脉病变及微循环的临床研究

[J]. 中国医药导刊, 2025 , 27(11) : 1183 -1183-1187 . DOI: magtech.2025.02.23-00004

Abstract

Objective: To evaluate the quantitative evaluation value of cardiac magnetic resonance CMR perfusion imaging for coronary lesions and microcirculation in patients with stable coronary artery disease SCAD.Methods: 90 patients with SCAD admitted in our hospital from January 2023 to January 2024 were randomly selected. All patients received CMR perfusion imaging and the diagnostic coincidence rate of CMR perfusion imaging in patients with SCAD was analyzed using the results of coronary angiography as the gold standard. The degree of coronary stenosis was evaluated according to the results of coronary angiography. Patients with mild to moderate stenosis coronary stenosis rate ≤75% were included in the mild to moderate group and patients with severe stenosis coronary stenosis rate >75% were included in the severe group. The differences of CMR perfusion parameters in SCAD patients with different degrees of coronary stenosis were compared. Microcirculation disorder was evaluated according to the results of coronary angiography. Patients with microcirculation disorder were included in the disorder group and those without microcirculation disorder were included in the non-disorder group. The perfusion parameters of the two groups were compared.Results: There was no significant difference in the diagnosis coincidence rate of LAD RCA and LCX by CMR perfusion imaging compared with coronary angiography P>0.05. Coronary angiography results showed that among the 90 patients with SCAD 41 cases were mild to moderate stenosis and 49 cases were severe stenosis. The first pass perfusion time and myocardial delayed enhancement signal in the severe group were higher than those in the mild to moderate group and slopemax was lower than that in the mild to moderate group P<0.05. In the 90 patients with SCAD 24 had microcirculation disorder.The first pass perfusion time and myocardial delayed enhancement signal in the disorder group were higher than that in the non-disorder group and slopemax was lower than that in the non-disordor group P<0.05.Conclusion: CMR perfusion imaging can accurately diagnose coronary artery lesions in patients with SCAD and can quantitatively analyze coronary artery lesions and microcirculation disorders in patients with SCAD providing certain reference for clinical evaluation of patients with SCAD.


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