摘要
彩色室壁运动（ｃｏｌｏｒｃｉｎｅｓｉｓ，ＣＫ）分析技术是在声学定量（ＡＱ）基础上新发展的一种超声组织定征方法，它能够实时显示心动周期不同相心内膜的位移，并辅以不同的彩色进行编码。本研究观察了１３例健康人左室壁收缩运动变化。结果显示：从左室整体收缩运动幅度来看室间隔运动幅度最低（Ｐ值＜０．０５），其余各节段室壁运动无显著差异；左室收缩末期各节段室壁心内膜位移四腔切面：侧壁基底段１１．３±１．１ｍｍ、中段１１．２±１．４ｍｍ、心尖段１０．３±１．１ｍｍ、室间隔基底段１０．２±１．２ｍｍ、中段１０．２±１．８ｍｍ、心尖段９．５±１．５ｍｍ；二腔切面：左室前壁基底段１１３±１．８ｍｍ、中段１０±１．１ｍｍ、心尖段１０±２．５ｍｍ、下壁基底段１０．１±１．７ｍｍ、中段１０±１．１ｍｍ、心尖段１０±１．２ｍｍ；左室乳头肌水平：前壁１１．４±１．３ｍｍ、侧壁１１．２±１．５ｍｍ、后壁１０．４±２．０ｍｍ、下壁１０．９±１．６ｍｍ、前间隔１０．７±１．０ｍｍ、后间隔１０．２±１．０ｍｍ。初步研究结果表明，ＣＫ技术可以定量分析室壁节段运动。
Acousticquantifcation color kinesis(AQCK)is anew technique for the echocardiographic assessment of regional left ventricular(LV)wall motion based on acoustic quantification technique.The aim of this issue was to describe the normal patterns of regional LV contraction using AQCK.Apical 4- chamber LV views were obtained in13 normal subjects(mean age33±2.5),apical2-chamber views in 8 normal subjects(mean age32±2.2)and short-axis level of LV in 9 normal subjects(mean age33.1±2.3).Each systolic color map was then divided into 30° wedgeshape segment through the central point of mitral valve annular at the apical views.Six segments was divided at papillary muscles level.In each segment,the position shift of each color was measured respectively in late phase of systole.Results from the view Of LV contractive amplitude,the motion amplitude of interventricular septum is the lowest,other segments are no significantly different the anterior:basal segment was 11.3±1.8(mm),middle segment 11±2.7(mm),apical segment10.1±2.5(mm);the inferior:basal segment10.,1±1.7(mm),middle segment10±1.1(mm),apical segment10±1.2(mm);the lateral:basal segment11.3±1.1(mm), middle segment11.2±1.4(mm),apical segment 10.3±1.6(mm);interventricular septum basal segment 10.2±1.2(mm),middle segment10.2±1.8(mm),apical segment 9.5±1.5(mm);at papillary muscles levelanterior wall11.4±1.3(mm),lateral wall11.2±1.8(mm),posterior wall10.4±2.0(mm), inferior wall10.9±1.6(mm),anteseptum10.7±1.0(mm),postseptum10.2±1.0(mm).Conclusion: quantitative analysis of AQCK provides accurate and highly reproducible assessment of LV regional wall motion.The normal pattems of contraction hereby described may be used as a reference for objective interpretation of ergional wall motion abnormalities.
出处
《中华超声影像学杂志》
CSCD
1997年第5期245-247,共3页
Chinese Journal of Ultrasonography
