关键词: 超声检查, 心肌梗塞, 诊断, 彩色室壁运动技术, 多普勒组织成像, 局部室壁运动 异常

Abstract: Objective To explore the clinical values of color kinesis (CK) combined with Doppler tissue imaging (DTI) in detection of regional wall movement abnormalities(RWMA) in patients with myocardial infarction. Methods The left ventricular wall movements were measured by CK and DTI techniques in 67 patients with myocardial infarction and 40 normal control subjects. DTI indexes included peak velocity of systolic wave(Vs), peak velocity of early or late diastolic wave(Ve, Va). Results The amplitudes of left ventricular wall movement by CK and the left ventricular wall movement velocities by DTI were decreased significantly in patients with myocardial infarction. The amplitudes and velocities of myocardial infarction segments were decreased further. The sensitivities of CK and DTI indexes were low in the diagnosis of RWMA (85.00% and 86.56%) and identification of infarction segments (87.62% and 85.33%) when they were used singly. When CK indexes were used with DTI indexes, the sensitivity of RWMA was 99.51%, the sensitiveity identification of infarction segments was 99.11%. Conclusion The RWMA and myocardial infarction segments can be diagnosed correctly by CK combined with DTI in patients with myocardial infarction.

Key words: ultrasonography, myocardial infarction, diagnosis, color kinesis technology, Doppler tissue imaging, regional wall movement abnormalities