Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, China.
PLoS One. 2012;7(8):e44348. doi: 10.1371/journal.pone.0044348. Epub 2012 Aug 31.
Standardization on Shear wave ultrasound elastography (SWUE) technical settings will not only ensure that the results are accurate, but also detect any differences over time that may be attributed to true physiological changes. The present study evaluated the variations of elastic modulus of muscle and tendon using SWUE when different technical aspects were altered. The results of this study indicated that variations of elastic modulus of muscle and tendon were found when different transducer's pressure and region of interest (ROI)'s size were applied. No significant differences in elastic modulus of the rectus femoris muscle and patellar tendon were found with different acquisition times of the SWUE sonogram. The SWUE on the muscle and tendon should be performed with the lightest transducer's pressure, a shorter acquisition time for the SWUE sonogram, while measuring the mean elastic modulus regardless the ROI's size.
超声弹性剪切波成像（SWUE）技术参数的标准化不仅能确保结果的准确性，还能检测到随时间推移可能归因于真正生理变化的任何差异。本研究评估了改变不同技术方面时，SWUE 对肌肉和肌腱弹性模量的变化。研究结果表明，当应用不同的换能器压力和感兴趣区（ROI）大小时，肌肉和肌腱的弹性模量会发生变化。SWUE 声像图不同采集时间时股直肌和髌腱的弹性模量无显著差异。SWUE 对肌肉和肌腱的检测应采用最轻的换能器压力，SWUE 声像图的采集时间更短，而无论 ROI 大小如何，都应测量平均弹性模量。
