Study of influential factors in evaluating tissue stiffness by virtual touch tissue quantification

VernacularTitle:声触诊组织量化技术评估组织硬度的影响因素分析
Author: Liyun XUE ; Jiexian WEN ; Qing LU ; Cuiju YAN ; Beijian HUANG ; Wenping WANG
Publication Type:Journal Article
Keywords: Ultrasonography; Elasticity; Virtual touch tissue quantification
From: Chinese Journal of Ultrasonography 2012;21(6):526-528
CountryChina
Language:Chinese
Abstract: ObjectiveTo investigate the influence of different depths and mediums on tissue stiffness measurement by virtual touch tissue quantification technology.Methods Four kinds of in vitro porcine tissue were recruited,three (fat,muscle and liver) were assigned as medium group and three (kidney,liver and muscle) as sample group.The shear wave velocity (Vs) of the samples was measured under different mediums and at different depths (2 cm,3 cm,4 cm and 5 cm),respectively.ResultsAccording to the depth of measurement,two groups of Vs were defined with one group at the depth of 2 cm and 3 cm while the other at 4 cm and 5 cm.The difference of Vs between the two groups was of statistical significance and with the increase of the depth Vs values decreased.Even at the same depth,the differences of Vs under different mediums were statistically significant.ConclusionsDepths and mediums have great influence on evaluating elasticity measurements by virtual touch tissue quantification technology.