核素显像鉴别缺血性和扩张性心肌病的综合评价

介绍了核素心肌灌注、心肌代谢、核素心室显像在缺血性心肌病(CAD-CM)和扩张性心肌病(DCM)鉴别诊断中的意义。扩张性心肌病患者心肌灌注显像多表现为放射性分布不均匀,无灌注缺损,代谢显像常与灌注显像一致,核素心室显像表现为弥漫性的室壁运动异常。缺血笥心肌病患者心肌灌注显像多表现严重的灌注异常,有灌注缺损且呈节段性分布,灌注与代谢显像不匹配多见,核素心室显像表现为节段性的定壁运动减低。

Comprehensive evaluation of radionuclide techniques in differentiating dilated cardiomyopathy and ischemic cardiomyopathy

This study analyzed significanc of radionuclide technique in differentiating dilated cardiomyopathy (DCM) from ischemic cardiomyoparthy (CAD CM). The patients with DCM usually show mild perfusion abnormalities and do not have perfusion defects. Perfusion imaging and metabolic imaging is concordant in most patients and reduced wall motion is typically diffuse in DCM.The majority of patients with CAD CM have perfusion defects and distributed as segmental. The perfusion imaging and metabolic imaging of patients with CAD CM generally show mismatch and the wall motion abnormality is segmental.