摘要
目的：应用 99Tcm－甲氧基异丁基异腈 (MIBI)心肌断层显像方法对左室重构进行定量评估。材料和方法：对 18例正常人和 57例冠心病 (CHD)患者行 99Tcm－ MIBI心肌断层显像，分析两组间心尖部和中央部纵径比 (LR)和横径比 (TR)及二者之差 (LR－ TR)的差别。结果：病人组 LR和 TR值明显高于正常组，其中陈旧性心梗和心绞痛患者的 LR－ TR值明显高于正常组；病人组 LR和 TR值与缺损计分、缺血面积百分比以及异常节段数明显相关，与冠脉狭窄支数相关性较弱，与左冠状动脉前降支单支的狭窄程度无明显相关。结论：心肌 99Tcm－ MIBI断层显像通过 LR和 TR两种参数的选定，可对左室重构的发生进行定量的评估。
Objective: To quantitatively evaluate left ventricular remodeling(LVRM) using 99Tcm－ MIBI myocardial SPECT imaging.Materials and Methods:99Tcm－ MIBI myocardial SPECT imaging was performed in 18 healthy subjects and 57 patients with coronary heart disease,and the ventricular luminal diameters,the total defect scores(TDS)of segments,and the size of ischemic areas were measured.The longitudinal diameters(LD)and transverse diameters(TD)between the apical and equatorial regions were compared,and the difference between LR and TR(LR－ TR)was cauculated.Results: The values of LR,TR in patient group and LR－ TR in patients with old myocardial infarction and in patients with angina pectoris were significantly higher than those in normal subject group;Both LR and TR had significantly positive correlation with the TDS,the size of ischemic areas and the sum of abnormal segments,and had a weak positive correlation with the number of the constrictive coronary artery,but had no significant correlation with the stenosis degree of single coronary artery.Conclusions:By measuring LR and TR,99Tcm－ MIBI myocardial SPECT imaging can be used as a method of quantitative evaluation of LVRM.
出处
《中国临床医学影像杂志》
CAS
2001年第1期15-17,共3页
Journal of China Clinic Medical Imaging
关键词
腈类
放射性核素显像
左室重构
nitriles
radionuclide imaging
left ventricular remodeling
