摘要
目的研究冠状动脉狭窄血流储备意义、影响因素及狭窄血流储备的阈值。方法取资料齐全者６２例（有定量冠状动脉造影及心肌核素等检查），按照临床诊断标准分为无症状、心绞痛和心肌梗死三组，把定量冠状动脉造影检查所得数据资料进行均数计算和相关性分析，观察狭窄形态学指标与狭窄血流储备的关系。结果（１）狭窄血流储备主要受百分直径狭窄、百分面积狭窄、绝对直径狭窄和绝对面积狭窄的影响；（２）当血流储备在３．０～１．５时可引起心肌缺血，低于１．５时有发生心肌梗死的可能。结论狭窄血流储备是反映冠状动脉局限性狭窄程度的功能性诊断指标，可提高对冠心病的诊断和预后。
? Purpose To study the significance, factors of affected and the threshold value of stenosis flow reserve of coronary artery. Methods Sixtytwo patients were subjected to quantitative coronary angiography, ECT and EKG. According to the results of clinical diagnosis, the patients were divided into three groups: normal,angina, and infarction. The data were hardled by mean and correlation test. Results Stenotic flow reserve was affected by the value of the percentage of stenotic diameter and area, absolute stenotic diameter and area. When the threshold value of stenotic flow reserve was 3.0—1.5, the patients would experience angina. When the value was less than 1.5, they would suffer from myocardial infarction. Conclusions Stenotic flow reserve is a functional diagnostic parameter of coronary artery localed stenosis.【
出处
《中华放射学杂志》
CAS
CSCD
北大核心
1998年第5期320-322,共3页
Chinese Journal of Radiology
关键词
冠状动脉硬化
局部血流
冠状血管造影术
数据收集
Coronary arteriosclerosis
Regional blood flow
Coronary angiography
Data collection
