Shapiro Robert S, Stancato-Pasik Agata, Sims Stephanie E
Department of Radiology, Mount Sinai School of Medicine, One Gustave L. Levy Place, Box 1234, New York, NY 10029-6574, USA.
Comput Biol Med. 2005 Oct;35(8):725-33. doi: 10.1016/j.compbiomed.2004.02.009.
The purpose of this study was to determine if tissue harmonic imaging (THI) produced diagnostic images more frequently than conventional sonography. A prospective study was performed on 33 patients, to compare the diagnostic value of THI with conventional sonography. Each examination was performed using THI (transmit frequency=2.0 MHz, receive frequency=4.0 MHz) and conventional sonography at 2.5 and 4.0 MHz. The different sonographic techniques were then graded as to whether they produced diagnostic images. THI produced diagnostic images in 33 of 33 examinations (100%), 2.5 MHz conventional sonography produced diagnostic images in 26 of 33 examinations (79%), and 4.0 MHz conventional sonography produced diagnostic images in 26 of 33 examinations (79%). THI produced diagnostic images significantly more frequently than 2.5 MHz conventional sonography (p=.0233) and 4.0 MHz conventional sonography (p=.0233). The THI technique produced diagnostic images more frequently than conventional sonography.
本研究的目的是确定组织谐波成像（THI）产生诊断性图像的频率是否高于传统超声检查。对33例患者进行了一项前瞻性研究，以比较THI与传统超声检查的诊断价值。每次检查均使用THI（发射频率=2.0MHz，接收频率=4.0MHz）以及2.5MHz和4.0MHz的传统超声检查。然后根据不同超声检查技术是否能产生诊断性图像进行分级。33次检查中，THI在33次检查中均产生了诊断性图像（100%），2.5MHz传统超声检查在33次检查中的26次产生了诊断性图像（79%），4.0MHz传统超声检查在33次检查中的26次产生了诊断性图像（79%）。THI产生诊断性图像的频率显著高于2.5MHz传统超声检查（p=0.0233）和4.0MHz传统超声检查（p=0.0233）。THI技术产生诊断性图像的频率高于传统超声检查。
