【摘要】 本文报道了放射性核素心室造影的左心室节段相位分析方法,在前位、左前斜位38°、左前斜位70°的振幅图上,将左心室划分为6个节段感兴趣区(ROI),分别测定各节段的相位标准差(S-SDP)、节段平均相位角与左心室起始相位角之差(S-PH)。观察64例心肌梗塞患者,表明节段相位分析方法对心肌梗塞节段定位与核素心肌断层显象及冠状动脉造影具有较高的符合率,灵敏度、特异性和准确性分别为74%～94%,86%～93%,82%～92%。更多还原

【Abstract】 In this study, the aim is to define the place of myocardial infarction in the left ventricle of the heart with segment phase analysis (SPHA). Two new index to evalute synchrony of contraction on the segment in left ventricle of the heart is presented in this programme: Standard deviatioa of the histogram of segment phase distribution, difference between the mean phase angle of the segment and onset phase angle of left ventricle of the heart. 64 pationts with myocardial infarction and 20 person with normal control subject were studied. Image data of anterior position, 38°left anterior oblique position and 70°left anterior oblique position were acquired with blood pool scintigrams. Region of tnterestng of 6 segments were created on apex, lateral, inferior and posterior. SPHA of each segment was performed. SPHA is in keeping with myocardial tomography about about define place of myocardial infarction. Sensitity, specificity and accaracy were 74%～94%, 86%～93% and 82%～92% respectively.更多还原