中华超声影像学杂志
中華超聲影像學雜誌
중화초성영상학잡지
CHINESE JOURNAL OF ULTRASONOGRAPHY
2010年
3期
185-189
,共5页
陈银花%许迪%陆凤翔%姚静%庄燕%雍永宏
陳銀花%許迪%陸鳳翔%姚靜%莊燕%雍永宏
진은화%허적%륙봉상%요정%장연%옹영굉
超声心动描记术%心脏起搏,人工%心室功能,左%斑点追踪显像
超聲心動描記術%心髒起搏,人工%心室功能,左%斑點追蹤顯像
초성심동묘기술%심장기박,인공%심실공능,좌%반점추종현상
Echocardiography%Cardiac pacing,artificial%Ventricular function,left%Speckle tracking imaging
目的 应用斑点追踪显像技术评价右心室不同部位起搏对左心室总体及节段心肌收缩功能的影响.方法 获取右室间隔起搏组(9例)、右室心尖起搏组(15例)、正常对照组(13例)心尖左室长轴观、胸骨旁左室短轴观图像,测量各节段峰值纵向应变(S_L)、峰值径向应变(S_R),计算左室总体峰值纵向应变(GS_L)、总体峰值径向应变(GS_R).结果 右室心尖起搏组GS_L[-(18.29±2.67)%]低于正常对照组[-(21.07±2.08)%]及右室间隔起搏组[-(20.54±2.29)%],差异均具有统计学意义(P<0.05),右室间隔起搏组与正常对照组GS_L比较差异无统计学意义(P>0.05).而右室心尖起搏组GS_R[-(26.85±7.73)%]与右室间隔起搏组GS_R[(28.59±6.06)%]均低于正常对照组[(36.26±9.37)%],差异有统计学意义(P<0.05),两起搏组间GS_R差异无统计学意义(P>0.05),但右室心尖起搏组GS_R有进一步降低趋势.两起搏组邻近起搏位点的左室节段心肌S_L及S_R较正常对照组相应节段明显降低,但右室间隔起搏组保持了与正常对照组相似的左室内应变分布,右室心尖起搏组左室内应变分布异常.结论 斑点追踪显像技术可定量评价右室不同部位起搏时左室总体及节段心肌收缩功能变化.
目的 應用斑點追蹤顯像技術評價右心室不同部位起搏對左心室總體及節段心肌收縮功能的影響.方法 穫取右室間隔起搏組(9例)、右室心尖起搏組(15例)、正常對照組(13例)心尖左室長軸觀、胸骨徬左室短軸觀圖像,測量各節段峰值縱嚮應變(S_L)、峰值徑嚮應變(S_R),計算左室總體峰值縱嚮應變(GS_L)、總體峰值徑嚮應變(GS_R).結果 右室心尖起搏組GS_L[-(18.29±2.67)%]低于正常對照組[-(21.07±2.08)%]及右室間隔起搏組[-(20.54±2.29)%],差異均具有統計學意義(P<0.05),右室間隔起搏組與正常對照組GS_L比較差異無統計學意義(P>0.05).而右室心尖起搏組GS_R[-(26.85±7.73)%]與右室間隔起搏組GS_R[(28.59±6.06)%]均低于正常對照組[(36.26±9.37)%],差異有統計學意義(P<0.05),兩起搏組間GS_R差異無統計學意義(P>0.05),但右室心尖起搏組GS_R有進一步降低趨勢.兩起搏組鄰近起搏位點的左室節段心肌S_L及S_R較正常對照組相應節段明顯降低,但右室間隔起搏組保持瞭與正常對照組相似的左室內應變分佈,右室心尖起搏組左室內應變分佈異常.結論 斑點追蹤顯像技術可定量評價右室不同部位起搏時左室總體及節段心肌收縮功能變化.
목적 응용반점추종현상기술평개우심실불동부위기박대좌심실총체급절단심기수축공능적영향.방법 획취우실간격기박조(9례)、우실심첨기박조(15례)、정상대조조(13례)심첨좌실장축관、흉골방좌실단축관도상,측량각절단봉치종향응변(S_L)、봉치경향응변(S_R),계산좌실총체봉치종향응변(GS_L)、총체봉치경향응변(GS_R).결과 우실심첨기박조GS_L[-(18.29±2.67)%]저우정상대조조[-(21.07±2.08)%]급우실간격기박조[-(20.54±2.29)%],차이균구유통계학의의(P<0.05),우실간격기박조여정상대조조GS_L비교차이무통계학의의(P>0.05).이우실심첨기박조GS_R[-(26.85±7.73)%]여우실간격기박조GS_R[(28.59±6.06)%]균저우정상대조조[(36.26±9.37)%],차이유통계학의의(P<0.05),량기박조간GS_R차이무통계학의의(P>0.05),단우실심첨기박조GS_R유진일보강저추세.량기박조린근기박위점적좌실절단심기S_L급S_R교정상대조조상응절단명현강저,단우실간격기박조보지료여정상대조조상사적좌실내응변분포,우실심첨기박조좌실내응변분포이상.결론 반점추종현상기술가정량평개우실불동부위기박시좌실총체급절단심기수축공능변화.
Objective To evaluate the left ventricular(LV)global and segmental myocardial systolic function in patients with permanent DDD pacemaker implantation by speckle tracking imaging.Methods Myocardial imaging of LV apical long views and parasternal LV short axis views were performed in 9 patients with right ventricular(RV)septum pacing(RV septum group),15 patients with RV apex pacing(RV apex group)and 13 healthy subjects(control group).Peak systolic longitudinal strain(S_L),peak systolic radial strain(S_R)were measured,and the average of S_L and S_R among LV 18 segments were calculated respectively as corresponding GS_L and GS_R.Results The GS_L[-(18.29±2.67)%]of RV apex group showed significant decrease compared with RV septum group[-(20.54±2.29)%]and control group[-(21.07±2.08)%](P<0.05),while no significant difference was found between RV septum and control group.The GS_R of the pacing groups were both lower than control group[(36.26±9.37)%in control group,(28.59±6.06)%in RV septum group,(26.85±7.73)%in RV apex group,P<0.05],but RV apex group showed more decrease trend.The S_L and S_R of the LV myocardial segments close to the pacing sites in both pacing groups showed significant decrease compared with control group,but RV septum group preserved similar LV strain distribution with control group while RV apex group showed abnormal LV strain pattern.Conclusions Speckle tracking imaging is a useful modality to evaluate global and segmental myocardial systolic function of LV with pacing at different right ventricular sites.