安徽医科大学学报
安徽醫科大學學報
안휘의과대학학보
ACTA UNIVERSITY MEDICINALIS ANHUI
2013年
11期
1360-1362,1363
,共4页
超声心动图描记术%扩张型心肌病%二维斑点追踪技术%实时三平面定量组织速度成像技术
超聲心動圖描記術%擴張型心肌病%二維斑點追蹤技術%實時三平麵定量組織速度成像技術
초성심동도묘기술%확장형심기병%이유반점추종기술%실시삼평면정량조직속도성상기술
echocardiography%dilated cardiomyopathy%speckle tracking two-dimensional strain%real-time triplane quantitative tissue velocity imaging
目的应用实时三平面定量组织速度成像技术(RT-3PE QTVI)与斑点追踪技术(STI)评价扩张型心肌病患者(DCM)左室纵向收缩不同步性。方法30例正常成人为对照组,30例DCM患者为DCM组。平静状态下获取心尖四腔切面、心尖二腔切面、心尖左室长轴切面二维灰阶及RT-3PE QTVI动态图像。双平面Simpson法测量左室射血分数(LVEF)；脱机分析测量左室基底段和中间段12节段组织速度峰值(Vs)及达峰时间(Ts),左室基底段、中间段、心尖段18节段纵向应变峰值(Ls)及达峰时间(Tls),并计算其达峰时间的最大差值(Ts-diff、 Tls-diff)及其标准差( Ts-SD、Tls-SD),作为左室纵向收缩不同步运动的指标。结果① DCM组的左室舒张末内径(LVEDd)、左室收缩末内径(LVESd)、左室舒张末容积(LVEDL)、左室收缩末容积(LVESL)、LVEF及左室短轴缩短率(FS)与对照组相比,差异有统计学意义(P<0.01)。② DCM组各节段Ls及Vs明显低②对照组相应节段,差异有统计学意义( P <0.01)。与对照组比较, DCM组Tls、Ts有明显的提前或延迟,差异有统计学意义(P<0.05)。③与对照组比较,DCM患者的Ts-SD、Tls-SD、Ts-diff、Tls-diff明显增加(P<0.01)；Ts-SD、Tls-SD、Ts-diff、Tls-diff与LVEF呈负相关(r=-0.67、-0.72、-0.75、-0.77, P<0.01)。结论DCM患者存在左室纵向收缩不同步性。RT-3PE QTVI与STI联合应用对②DCM患者左室纵向收缩不同步评价,优②其中的任何一种技术。
目的應用實時三平麵定量組織速度成像技術(RT-3PE QTVI)與斑點追蹤技術(STI)評價擴張型心肌病患者(DCM)左室縱嚮收縮不同步性。方法30例正常成人為對照組,30例DCM患者為DCM組。平靜狀態下穫取心尖四腔切麵、心尖二腔切麵、心尖左室長軸切麵二維灰階及RT-3PE QTVI動態圖像。雙平麵Simpson法測量左室射血分數(LVEF)；脫機分析測量左室基底段和中間段12節段組織速度峰值(Vs)及達峰時間(Ts),左室基底段、中間段、心尖段18節段縱嚮應變峰值(Ls)及達峰時間(Tls),併計算其達峰時間的最大差值(Ts-diff、 Tls-diff)及其標準差( Ts-SD、Tls-SD),作為左室縱嚮收縮不同步運動的指標。結果① DCM組的左室舒張末內徑(LVEDd)、左室收縮末內徑(LVESd)、左室舒張末容積(LVEDL)、左室收縮末容積(LVESL)、LVEF及左室短軸縮短率(FS)與對照組相比,差異有統計學意義(P<0.01)。② DCM組各節段Ls及Vs明顯低②對照組相應節段,差異有統計學意義( P <0.01)。與對照組比較, DCM組Tls、Ts有明顯的提前或延遲,差異有統計學意義(P<0.05)。③與對照組比較,DCM患者的Ts-SD、Tls-SD、Ts-diff、Tls-diff明顯增加(P<0.01)；Ts-SD、Tls-SD、Ts-diff、Tls-diff與LVEF呈負相關(r=-0.67、-0.72、-0.75、-0.77, P<0.01)。結論DCM患者存在左室縱嚮收縮不同步性。RT-3PE QTVI與STI聯閤應用對②DCM患者左室縱嚮收縮不同步評價,優②其中的任何一種技術。
목적응용실시삼평면정량조직속도성상기술(RT-3PE QTVI)여반점추종기술(STI)평개확장형심기병환자(DCM)좌실종향수축불동보성。방법30례정상성인위대조조,30례DCM환자위DCM조。평정상태하획취심첨사강절면、심첨이강절면、심첨좌실장축절면이유회계급RT-3PE QTVI동태도상。쌍평면Simpson법측량좌실사혈분수(LVEF)；탈궤분석측량좌실기저단화중간단12절단조직속도봉치(Vs)급체봉시간(Ts),좌실기저단、중간단、심첨단18절단종향응변봉치(Ls)급체봉시간(Tls),병계산기체봉시간적최대차치(Ts-diff、 Tls-diff)급기표준차( Ts-SD、Tls-SD),작위좌실종향수축불동보운동적지표。결과① DCM조적좌실서장말내경(LVEDd)、좌실수축말내경(LVESd)、좌실서장말용적(LVEDL)、좌실수축말용적(LVESL)、LVEF급좌실단축축단솔(FS)여대조조상비,차이유통계학의의(P<0.01)。② DCM조각절단Ls급Vs명현저②대조조상응절단,차이유통계학의의( P <0.01)。여대조조비교, DCM조Tls、Ts유명현적제전혹연지,차이유통계학의의(P<0.05)。③여대조조비교,DCM환자적Ts-SD、Tls-SD、Ts-diff、Tls-diff명현증가(P<0.01)；Ts-SD、Tls-SD、Ts-diff、Tls-diff여LVEF정부상관(r=-0.67、-0.72、-0.75、-0.77, P<0.01)。결론DCM환자존재좌실종향수축불동보성。RT-3PE QTVI여STI연합응용대②DCM환자좌실종향수축불동보평개,우②기중적임하일충기술。
Objective To explore left ventricular longitudinal axis systolic asynchrony by real-time triplane quanti-tativetissue velocity imaging(RT-3PE QTVI) and two-dimensional speckle tracking imaging(STI) in patients with dilated cardiomyopathy. Methods Thirty normal adults were included as the control group and thirty adults with DCM. The images from enough frame rates RT-3PE QTVI and STI were obtained from series long-axis views. Simp-son method was used to measure LVEF. Q-lab software was used to measure peak systolic tissue velocity(Vs) and peak systolic longitudinal strain (Ls),its time to peak point from each segment(Ts,Tls) and the maximal temporal difference of Ts,Tls(Ts-diff,Tls-diff),and the standard deviation of. Ts,Tls(Ts-SD,Tls-SD),which were served as systolic asynchrony indexes in assessing LV longitudinal axis systolic asynchrony. Results ① Compared the con-trol group and DCM group,there were significant differences in LVEDd,LVESd,LVEDL,LVESL,LVEF,FS (P<0.01). ② In comparison with the control group,the Ls and Vs of each segment were decreased in the DCM group (P<0.01). Compared with the control group,the parameters of Tls and Ts in DCM group had obvious ahead or de-layed(P<0.05). ③ Compared with the control group,the parameters of Ts-SD, Tls-SD, Ts-diff, Tls-diff,were significantly different in DCM group (P<0.01). Ts-SD,Tls-SD,Ts-diff,Tls-diff corrrlated negatively to LVEF(r=-0.67,-0.72,-0.75, -0.77,P<0.01). Conclusion The prevalence of left ventricular longitndinal axis systolic asynchrony exits in patients with DCM. There is a better technique to evaluate LV longitudinal axis systolic asynchrony by RT-3PE QTVI and STI than only one.
