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目的 评价AQI和CK 技术观测急性心肌梗死(AMI)患者左心功能改变及室壁运动异常的可行性.方法 以M型、2D 及CK、AQI各指标对AMI及健康组对照分析.结果 AMI的收缩与舒张功能均减退.射血分数、左室面积变化分数、峰值射血率减少,反映左室舒张功能的峰值充盈率减少,峰值充盈时间延长.而AMI患者左室梗死节段无论收缩期还是舒张期均表现为彩色位移明显减少(小于6 M M ),同时可见彩带层次减少甚至消失,反映出室壁节段性运动障碍.结论 CK 和AQI能迅速准确地判定AMI的室壁运动异常及心功能改变.“,”Color kinesis(CK) and intelligent acouctic quantification(AQi) were used for study of left ventricular function and the wall motion.Methods 30 normal subjects and 26 acute myocardial infarction cases(AMI) were allocated in this series of investigation.Results The result of AQi showed the LV systolic and diastolic functions decreased in AMI cases as compared with the normal subjects. those indices such as the ejection fraction(EF), Fraction area change(FAC) and peak ejection rate(PER). representing LV systolic function decreased. The peak filling rate(PFR) reduced and time of peak filling rate(TPFR) prolonged which manifested LV diastolic function.Conclusions The wall motions of LV appear multicolor in obvious levels from red, then yellow, to green in systolic period, the mean displacement is 9.3±1.9 mm, and from red, then blue to green in distolic period, the mean displacement is 9.5±1.9 mm. But on AMI patients, Color displacement were decreased in systolic and diastolic periods on infarct segment of LV, all below 6 mm. Color levels decreased, even disapperaed, inducates the obstruction of wall segmental motion.