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核素时相分析能灵敏地反映心室各局部的收缩功能及其协调性。在冠心病患者中,其诊断灵敏性达92～95%,并可准确地反映出心肌缺血、梗塞及室壁瘤的部位及大小。在传导异常疾患中,时相分析可形象地观察及定位传导异常的起点及途径,能显示出右束支、左束支及其分支的传导阻滞,并可定位诊断预激传导旁路,其准确性达80～88%,高于ECG在预激综合症中的诊断。此外,时相分析在心脏瓣膜病变、心肌炎及心肌病等心脏疾患的诊断及鉴别中也有重要意义。
Radionuclide phase analysis can sensitively reflect the local ventricular systolic function and coordination. In patients with coronary heart disease, its diagnostic sensitivity of 92 to 95%, and can accurately reflect the myocardial ischemia, infarction and aneurysm sites and size. In the conduction disorders, the phase analysis can visually observe and locate the starting point and pathway of conduction abnormalities, can show the right bundle branch, left bundle branch and branch of the block, and can locate the diagnosis of pre-excitation conduction bypass, The accuracy of 80 ~ 88%, higher than the ECG in the WPW syndrome diagnosis. In addition, phase analysis is also important in the diagnosis and identification of heart diseases such as valvular heart disease, myocarditis and cardiomyopathy.