【摘要】 目的　评价99mTC -MIBI肺摄取定量分析在冠心病诊断中的价值。方法　对心梗组、心绞痛组和对照组病人行99mTC -MIBISPECT时测量其前位投影图的动、静态的LHR ;并用核素心室显像测定LVEF。结果　心绞痛组和对照组LHR运动较静息时低 (P <0 0 0 1) ;静息时心绞痛组较对照组高 (P <0 0 5 ) ;运动时两组无显著差异 ;静息时心梗组较对照组、和心绞痛组高 (P <0 0 0 2 5 ) ;心绞痛组运动和静息LHR均与LVEF呈显著负相关 (P均 <0 0 0 1)。结论　冠心病患者运动和静息时LHR升降有诊断价值 ,LHR可预测左心室功能更多还原

【Abstract】 Purpose To assess diagnosis value of the 99m TC-MIBI lung uptake in the CAD. Methods Calculating the lung to heart ratios both at rest and exercise of three groups:the myocardial infarction group、the angina pectoris group and the control group in the same time of doing 99m TC-MIBI SPECT,and determining the left ventricular ejection fraction(LVEF)using RNV. Results In the control group and angina pectoris group,a significant decrease in LHR was observed during exercise( P <0.001);The angina pectoris group showed significantly high LHR values at rest ( P <0.05) and which showed no significant difference at exercise between two groups.The myocardial infarction group showed higher LHR values at rest than the control group and angina pectoris group( P <0.0025);A negative correlation was observed between LHR values and LVEF at rest and exercise in the angina pectoris group( P <0.001). Conclusion Both higher or lower LHR at rest and exercise in CAD patients have diagnosis value.LHR may be used in evaluation of left ventricular function. [更多还原