心肌致密化不全患者心肌曲线M型应变率成像特征  

Curved M-mode strain rate imaging for noncompaction of the ventricular myocardium

作　　者：曹丹[1] 黎春雷[1] 邓又斌[1] 刘红云[1] 毕小军[1] 刘健[1] 郑光美[1] 

机构地区：[1]华中科技大学同济医学院附属同济医院超声影像科,湖北武汉430030

出　　处：《中国临床医学影像杂志》2006年第3期133-135,共3页Journal of China Clinic Medical Imaging

摘　　要：目的:探讨组织多普勒曲线M型(CMM)和应变率图在诊断心肌致密化不全中的价值。方法:应用CMM的应变率图成像模式,结合同步记录的心电图,分别在心尖四腔观、左室两腔观以及心尖左室长轴观评价5例心肌致密化不全患者致密化不全心肌局部舒缩的同步性。结果:致密化不全心肌各个节段舒缩不同步,呈现收缩与舒张交替进行的不连续的矛盾运动。结论:高帧频的组织多普勒CMM的应变率曲线,特征性地评价了心肌致密化不全患者致密化不全心肌各节段运动的不同步性,为超声诊断该病提供了一种更为客观的新方法,具有广阔的临床应用前景。Objective： To discuss the diagnostic value of noncompaction of the ventricular myocardium using tissue Doppler curved M-mode strain rate imaging（CMM-SRI）. Methods： Consistency of the noncompactional ventricular myocardium contraction were observed and analyzed in 5 patients respectively in apical four-chamber view, two-chamber view of the left heart and apical long axis view of the left heart using CMM-SRI. Results： Curved M-mode strain rate profile recorded from left ventricular lateral wall and left ventricular posterior wall of 5 patients during 2 cardiac cycles. There were discrete paradoxical bands, adjacented to one another, of expansion and compression throughout beth systole and diastole. There was no coordinated systolic compression or diastolic expansion wave form. Normal curved M-mode strain rate profile recorded from left ventricular wall of age-matched controls during 2 cardiac cycles. Here, uniform systolic compression or systolic strain rate was seen and 2 distinct expansion profiles were seen in early （E） and late （A） diastole. Conelusions： High frame-rate tissue Doppler CMM-SRI technique appears to be a promising tool to provide the phase information, and reveals unique appearances of paradoxical alternating bands of compression and expansion throughout systole and diastole in patemts with noncompaction of the ventricular myocardium.

关 键 词：心脏病 超声心动描记术 多普勒 彩色 

分 类 号：R541[医药卫生—心血管疾病] R540.45[医药卫生—内科学]