CAJ | 학술논문

目的：探讨双多普勒同步成像技术（简称双多普勒模式）评估射血分数正常的心房颤动患者左室舒张功能的价值。方法随机选取40例射血分数正常的心房颤动患者为病例组，40例健康体检者为对照组。①采用双多普勒模式同步获取同一心动周期的二尖瓣口血流舒张早期峰值速度（E ）和组织多普勒（TDI）二尖瓣环侧壁（L）心肌运动峰值速度（e′）；②同步获取同一心动周期二尖瓣口E峰和TDI二尖瓣环室间隔（S ）心肌运动峰值速度（e′）；③同步获取同一心动周期二尖瓣口E峰和舒张期二尖瓣口血流播散速度（Vp）。计算E／e′（L）、E／e′（S）及E／Vp。结果与对照组比较，病例组E／e′（L）、E／e′（S）及E／Vp均增高，差异有统计学意义（ P ＜00．5）。Bland‐Altman分析显示双多普勒模式较传统模式测量 E／e′（L ）、E／e′（S）、E／Vp的重复性更好，组内相关系数（ICC）明显高于传统模式。结论双多普勒模式用于评估心房颤动患者左室舒张功能较传统模式的重复性更好，结果更准确。
목적：탐토쌍다보륵동보성상기술（간칭쌍다보륵모식）평고사혈분수정상적심방전동환자좌실서장공능적개치。방법수궤선취40례사혈분수정상적심방전동환자위병례조，40례건강체검자위대조조。①채용쌍다보륵모식동보획취동일심동주기적이첨판구혈류서장조기봉치속도（E ）화조직다보륵（TDI）이첨판배측벽（L）심기운동봉치속도（e′）；②동보획취동일심동주기이첨판구E봉화TDI이첨판배실간격（S ）심기운동봉치속도（e′）；③동보획취동일심동주기이첨판구E봉화서장기이첨판구혈류파산속도（Vp）。계산E／e′（L）、E／e′（S）급E／Vp。결과여대조조비교，병례조E／e′（L）、E／e′（S）급E／Vp균증고，차이유통계학의의（ P ＜00．5）。Bland‐Altman분석현시쌍다보륵모식교전통모식측량 E／e′（L ）、E／e′（S）、E／Vp적중복성경호，조내상관계수（ICC）명현고우전통모식。결론쌍다보륵모식용우평고심방전동환자좌실서장공능교전통모식적중복성경호，결과경준학。
Objective To evaluate the value of dual‐Doppler imaging technology (referred to as dual‐Doppler modality for short) in assessing left ventricular diastolic function in patients with atrial fibrillation (AF) and normal left ventricular ejection fraction (LVEF) .Methods A total of 40 patients with AF and normal LVEF were enrolled as the AF group ,and 40 healthy volunteers were composed of the control group .①Peak early diastolic transmitral flow velocity (E) and tissue Doppler lateral (L ) mitral annular early diastolic velocity (e′) were measured simultaneously in the particular cardiac cycle by dual‐Doppler modality .②Peak early diastolic transmitral flow velocity (E) and tissue Doppler septal (S) mitral annular early diastolic velocity (e′) were measured simultaneously in the particular cardiac cycle .③ Peak early diastolic transmitral flow velocity (E) and color M‐mode Doppler flow propagation velocity (Vp) were measured simultaneously in the particular cardiac cycle .Then E/e′(L) ,E/e′(S) and E/Vp were calculated , respectively .Results Compared to the control group ,E/e′(L) ,E/e′(S)and E/Vp were all higher in AF group ( P <0 0.5) .Bland‐Altman showed that E/e′(L) ,E/e′(S)and E/Vp measured by the dual‐Doppler modality had better reproducibility and higher intraclass correlation coefficient (ICC) than the conventional Doppler modality .Conclusions The dual‐Doppler modality is valuable for evaluating left ventricular diastolic function in patients with AF and has better reproducibility and more accurate results than the conventional Doppler modality .