组织谐波显像和CK技术结合在冠心病应用的研究

目的　彩色室壁运动技术（Ｃｏｌｏｒ Ｋｉｎｅｓｉｓ ＣＫ） 的应用受二维图像质量影响。组织谐波显像（ｔｉｓｓｕｅ ｈａｒｍｏｎｉｃｉｍａｇｅ ＴＨＩ）能改善声窗不佳者二维图像质量。本文拟观察ＴＨＩ对ＣＫ 评价室壁运动的影响。方法　非选择性冠心病患者２１ 名，分别在基波（ＦＩ） 和谐波（ＨＩ）下采集二维和收缩末ＣＫ 图像，比较两种显像方式下心内膜显示、二维和ＣＫ 图像质量以及ＣＫ 评价室壁运动的准确性。结果　ＨＩ下心内膜显示改善，二维和ＣＫ 图像质量提高，ＣＫ图像采集成功率由ＦＩ的８４－８ ％ 增加到９５－８ ％ ，评价室壁运动的准确性由６８－４ ％ 增加到８８－７％ 。结论　ＴＨＩ和ＣＫ技术的结合提高了ＣＫ 技术的临床适用性。

A Study of the Combination of Tissue Harmonic Image and Color Kinesis at Patients with Coronary Heart Disease

Purpose Color Kinesis (CK) is two dimensional(2 D)image quality dependent.Tissue harmonic image(THI)can improve 2 D image quality at patients with technically difficult echocardiograms.This study was to determine the effect of THI on assessment of wall motion using CK at patients with coronary heart disease (CAD).Methods 2 D and end systolic CK images were performed both in FI and THI mode in 20 unselected CAD patients.Endocardial visualization,2 D and CK image quality,and accuracy of CK for assessmet of wall motion was assessed and compared between the two modes.Results HI enhances endocardial visualization and improves 2 D and CK image quality.The success rate of acquiring CK image and accuracy of assessing wall motion was improved in HI compared with that of FI (from 84 8% to 95 8%,and 68 4% to 88 7% respectively,both P <0 001).Conclusion The combination of THI and CK improves the feasibility of CK.