Sawayama T, Ito Y, Ichikawa T, Nezuo S, Tsuda T
Am J Cardiol. 1977 Aug;40(2):277-81. doi: 10.1016/0002-9149(77)90020-0.
In 13 patients with old myocardial infarction diagnosed with use of the electrocardiogram, coronary angiogram and left ventriculogram and in 11 patients without infarction, thallium-201 imaging with a color display computer system was carried out. In the group without infarction the average ratio of activities in two regions of interest within the myocardial wall, excluding the apex, was 1.14 (1.08 to 1.23). In the group with infarction the average ratio of noninfarcted to infarcted areas was 1.44 (1.23 to 1.78). Objective detection of infarction was possible in 12 patients (92 percent) in the group with infarction. In two patients, the earlier electrocardiographic pattern of infarction had resolved by the time of imaging. These results suggest that the sensitivity of thallium-201 imaging in the diagnosis of old myocardial infarction may be greatly enhanced by objective and quantitative analysis using a color display computer system.
对13例经心电图、冠状动脉造影和左心室造影确诊的陈旧性心肌梗死患者以及11例无梗死患者进行了用彩色显示计算机系统的铊-201显像。在无梗死组中，心肌壁内（不包括心尖）两个感兴趣区域的平均活性比值为1.14（1.08至1.23）。在梗死组中，非梗死区与梗死区的平均比值为1.44（1.23至1.78）。梗死组中有12例患者（92%）能够客观检测到梗死。在两名患者中，成像时梗死早期的心电图模式已消失。这些结果表明，使用彩色显示计算机系统进行客观和定量分析可大大提高铊-201显像对陈旧性心肌梗死诊断的敏感性。
