中国医学科学院学报2016，Vol.38Issue(6)：654-659,6.DOI:10.3881/j.issn.1000-503X.2016.06.006
心肌桥-壁冠状动脉对心肌供血的影响
Impact of Myocardial Bridge-mural Coronary Artery on Myocardial Blood Supply
赵新斌 1傅昱 1董小波 2齐志1
作者信息
- 1. 华北理工大学附属医院CT室，河北唐山063000
- 2. 开滦总医院核医学科，河北唐山063000
- 折叠
摘要
Abstract
Objective To explore the impact of myocardial bridge-mural coronary artery ( MB-MCA ) on myocardial blood supply. Methods The imaging data of 74 patients with the isolate MB in the left anterior descending artery undergoing 256-slice CT coronary angiography and myocardial perfusion imaging ( MPI) were retrospectively analyzed. The subjects were divided into incomplete and complete MB types. The length of MB and the systolic stenosis degree of MCA were measured. The type and length of MB and the systolic stenosis degree of MCA ( according to Noble grade) were compared between the normal and abnormal MPI groups. The clinical characteristics including age, gender, body mass index, hypertension, dyslipidemia, diabetes mellitus, and smoking history were also reviewed. Results There were 38 incomplete MB cases and 13 complete MB cases in the normal MPI group, and 5 and 18 in the abnormal MPI group (χ2=18. 134, P=0. 000) . The MB length in the normal and abnormal MPI group were (14. 7±3. 7) mm and (15. 5±4. 5) mm (t=0. 804, P=0. 424) . However, the systolic stenosis degree of MCA showed significant difference (χ2=17. 839, P=0. 000) . The <br> clinical characteristics were not significantly differentt between the normal and abnormal MPI groups (P>0. 05). Conclusions The MB type and the systolic stenosis degree of MCA can affect myocardial perfusion. Patients with complete MB and the moderate-to-severe systolic stenosis degree of MCA are more susceptible to myocardial ische-mia. However, the MB length is not correlated with myocardial ischemia.关键词
心肌桥/心肌缺血/冠状动脉造影术/体层摄影术/心肌灌注显像Key words
myocardial bridge/myocardial ischemia/coronary angiography/tomography/myocardial perfusion imaging分类
医药卫生引用本文复制引用
赵新斌,傅昱,董小波,齐志..心肌桥-壁冠状动脉对心肌供血的影响[J].中国医学科学院学报,2016,38(6):654-659,6.
