呼吸时相及探测深度对肝弹性测量值的影响  

The Effect of Respiration Status and Detection Depth on Liver Elasticity Measurements

作　　者：安力春[1] 范春芝[1] 温朝阳[1] 徐建红[1] 罗渝昆[1] 唐杰[1] 

机构地区：[1]解放军总医院超声科,北京100853

出　　处：《中国医学影像学杂志》2011年第10期771-774,共4页Chinese Journal of Medical Imaging

摘　　要：目的评价探测深度及呼吸时相对Supersonic剪切波弹性成像技术(SSI)测量肝弹性值的影响。资料与方法121例男性志愿者均使用SupersonicImagine公司AixPlore型实时定量剪切波超声弹性成像超声诊断仪,1～6MHz凸阵探头。嘱受检者深呼吸,分别在吸气末和呼气末于肝右叶2～4cm、6～8cm深度测量肝弹性模量值并进行比较。结果深度为2～4cm处测量,呼气末肝弹性模量值为6.026±1.482kPa,吸气末肝弹性模量值为6.097±1.628kPa;深度为6～8cm处测量,呼气末肝弹性模量值为6.758±2.035kPa,吸气末肝弹性模量值为6.976±2.142kPa。呼气末与吸气末肝弹性模量值比较,差异无统计学意义P>0.05;2～4cm深度与6～8cm深度肝弹性模量值比较,差异有统计学意义P<0.05。结论运用SSI测量肝弹性模量值时,受检者呼吸时相对肝弹性模量值测量无影响;测量深度影响肝弹性模量值的测量,随着深度的增加,肝弹性模模量有所增加。Purpose To investigate the effect of respiration and detection depth on liver elasticity measurement by Supersonic shear wave elasticity imaging（SSI）.Materials and Methods A total of 121 male volunteers were included in the study.A shear-wave elasto-sonography（AixPlorer model,Supersonic Imagine,Aix en Provence,France） coupled with a convex array probe（1～6MHz） was used to measure and compare the elasticity in the end of inspiration with that in the end of expiration at the detection depth of 2～4cm and 6～8cm.Results At the detection depth of 2～4cm,the elasticity modulus of liver was 6.026±1.482 kPa in the end of expiration and 6.097±1.628 kPa in the end of inspiration.At the depth of 6～8cm,the elasticity modulus of liver was 6.758±2.035 kPa in the end of expiration and 6.976±2.142 kPa in the end of inspiration.Compare the elasticity modulus in the end of inspiration with that in the end of expiration,the difference has no statistical significance（P 〉 0.05）.In the end of inspiration,the elasticity modulus of liver was 6.097±1.682 kPa at the depth of 2～4cm and 6.976±2.142 kPa at the depth of 6～8cm.In the end of expiration,the elasticity modulus of liver was 6.026±1.482 kPa at the depth of 2～4cm and 6.758±2.035 kPa at the depth of 6～8cm.These differences were statistically significant（P 〈0.05）.Conclusion Respiratory status has no effect on the liver elasticity measurements.With increase of the detection depth,the elasticity modulus increases.

关 键 词：肝 弹性 呼吸力学 超声检查 多普勒 彩色 血管阻力 诊断 鉴别 

分 类 号：R445.14[医药卫生—影像医学与核医学]