Yagi T, Yoshida K, Hozumi T, Akasaka T, Takagi T, Yamamuro A, Ueda Y, Kawai J, Morioka S
Division of Cardiology, Kobe General Hospital.
J Cardiol. 1999 Feb;33(2):95-8.
Assessment of segmental wall motion is one of the most challenging tasks in echocardiography. One major limitation is impairment of echocardiographic regional wall motion by incomplete endocardial definition. The newly developed tissue harmonic imaging method may improve the detection of left ventricular endocardial border. This study examined the impact of native tissue harmonic imaging on endocardial border definition. Fundamental and harmonic imaging were compared for detecting the endocardial border in 96 segments of 16 patients (age 54 +/- 8 years). Visualization of endocardial border was better with harmonic imaging than with fundamental mode in 49% (47 of 96 segments). Thus, tissue harmonic imaging has a significant impact on endocardial border definition.
节段性室壁运动评估是超声心动图中最具挑战性的任务之一。一个主要限制是心内膜定义不完整会损害超声心动图区域壁运动。新开发的组织谐波成像方法可能会改善左心室心内膜边界的检测。本研究检查了自然组织谐波成像对心内膜边界定义的影响。比较了16例患者（年龄54±8岁）96个节段的基波成像和谐波成像检测心内膜边界的情况。在96个节段中的47个节段（49%），谐波成像的心内膜边界可视化效果优于基波模式。因此，组织谐波成像对心内膜边界定义有显著影响。
