定量组织速度成像联合组织追踪成像评价川崎病患儿左心收缩功能

目的 联合应用定量组织速度成像(quantitative tissue velocity imaging,QTVI)及组织追踪成像(Tissue Tracking Imaging,TTI)评价急性期及慢性期川崎病患儿的左心纵轴收缩功能变化.方法 选取我院2009年5月至2010年9月68例受试者纳入试验,年龄(5....

Quantitative tissue velocity imaging combined with tissue tracking imaging for assessing left ventricular systolic function of children with Kawasaki disease

Objective To evaluate the left ventricular longitudinal systolic function of children with Kawasaki disease in acute and chronic phase by quantitative tissue velocity imaging(QTVI) and tissue tracking imaging(TTI).Methods From April 2000 to September 2010,sixty-eight patients of our hospital were enrolled,whose average age was 5.94±3.02 years,including 30 patients with Kawasaki disease in acute phase(acute phase group),18 patients with Kawasaki disease in chronic phase(chronic phase group) and 20 normal children(control group).The peak systolic velocities(Vs) and peak systolic velocities(Ds) in lateral,inferior,anterior and posterior wall of left ventricle and in anteroseptal and posteroseptal wall of interventricular septum were measured using QTVI and TTI.Results The average Vs of the acute phase group was significantly lower than those of the chronic phase group and the control group in mitral annulus,basal and middle segments(P<0.05).The average Vs of the chronic phase group was significantly lower than that of the control group in mitral annulus and middle segments(P<0.05),but not in basal segment(P>0.05).The average Ds of the acute phase group was significantly lower than those of the chronic phase group and the control group in mitral annulus,basal and middle segments(P<0.05).The average Ds of the chronic phase group was significantly lower than that of the control group in mitral annulus and basal segments(P<0.05),but not in middle segment(P>0.05).Conclusion QTVI combined with TTI can be applied to detect dysfunction of regional left ventricular myocardium contraction in acute and chronic phase of Kawasaki disease.