Main M L, Asher C R, Rubin D N, Odabashian J A, Cardon L A, Thomas J D, Klein A L
Department of Cardiology, Cleveland Clinic Foundation, Ohio 44195, USA.
Am J Cardiol. 1999 Jan 15;83(2):218-22. doi: 10.1016/s0002-9149(98)00844-3.
Endocardial resolution during 2-dimensional echocardiography is technically limited in at least 10% to 15% of patients. Recently, several ultrasound imaging innovations have been introduced that may improve endocardial resolution and decrease the proportion of technically difficult studies. This study compares tissue harmonic imaging, intravenous sonicated albumin, and Doppler myocardial imaging in patients with technically difficult echocardiograms. Twenty-eight patients with known or suspected cardiac disease and poor baseline endocardial resolution were studied. Only harmonic imaging (conventional and optimized for tissue) was superior to baseline fundamental imaging (p <0.001). Harmonic imaging was superior to baseline imaging in all myocardial regions and in the majority of patients, including those with the worst baseline studies.
在二维超声心动图检查过程中，至少10%至15%的患者的心内膜分辨率在技术上受到限制。最近，已经引入了几种超声成像创新技术，这些技术可能会提高心内膜分辨率，并减少技术难度较大的检查比例。本研究比较了组织谐波成像、静脉注射超声白蛋白和多普勒心肌成像在超声心动图检查技术难度较大的患者中的应用。对28例已知或疑似患有心脏病且基线心内膜分辨率较差的患者进行了研究。只有谐波成像（传统的和针对组织优化的）优于基线基波成像（p<0.001）。谐波成像在所有心肌区域以及大多数患者中均优于基线成像，包括那些基线检查最差的患者。
