CAJ | 학술논문

目的：探讨实时三维经食管超声 Flexi Slice 显像技术定量测量心房颤动患者左心耳的价值。方法对46例心房颤动患者进行二维及实时三维经食管超声心动图检查,获取二维及 Flexi Slice 重建的0°、45°、90°、135°切面图像；获取 Flexi Slice 重建的左心耳短轴最大与最小开口径,并记录其切面角度,并与常规的多平面经食管超声取样测量进行比较。结果 Flexi Slice 在各重建切面的左心耳开口径测值与二维超声测值差异无统计学意义(P >0.05)；Flexi Slice 在深度测量中45°和90°切面与二维超声测值差异具有统计学意义(P 值分别为0.045、0.002),0°和135°切面测值与二维超声差异无统计学意义(P >0.05)。各二维图像测量值与 Flexi Slice 测量值具有较高的相关性。Bland-Altman 分析显示94.29%数据点在一致性界限以内,其差值的一致性界限为(-2.5 mm,2.9 mm)；左心耳开口最大径分布在30°~160°之间,其中87%(40/46例)分布于90°~150°切面；最小径分布在0°~160°,其中85%(39/46例)分布在0°~60°切面。结论 Flexi Slice 显像可以较好地完成左心耳的测量,较传统二维食管超声具有明显的优势。
목적：탐토실시삼유경식관초성 Flexi Slice 현상기술정량측량심방전동환자좌심이적개치。방법대46례심방전동환자진행이유급실시삼유경식관초성심동도검사,획취이유급 Flexi Slice 중건적0°、45°、90°、135°절면도상；획취 Flexi Slice 중건적좌심이단축최대여최소개구경,병기록기절면각도,병여상규적다평면경식관초성취양측량진행비교。결과 Flexi Slice 재각중건절면적좌심이개구경측치여이유초성측치차이무통계학의의(P >0.05)；Flexi Slice 재심도측량중45°화90°절면여이유초성측치차이구유통계학의의(P 치분별위0.045、0.002),0°화135°절면측치여이유초성차이무통계학의의(P >0.05)。각이유도상측량치여 Flexi Slice 측량치구유교고적상관성。Bland-Altman 분석현시94.29%수거점재일치성계한이내,기차치적일치성계한위(-2.5 mm,2.9 mm)；좌심이개구최대경분포재30°~160°지간,기중87%(40/46례)분포우90°~150°절면；최소경분포재0°~160°,기중85%(39/46례)분포재0°~60°절면。결론 Flexi Slice 현상가이교호지완성좌심이적측량,교전통이유식관초성구유명현적우세。
Objective To measure left atrial appendage (LAA)in patients with atrial fibrillation using Flexi Slice imaging by real time 3D transesophageal echocardiography (TEE),and compare with common multiplane TEE.Methods Forty-six patients with atrial fibrillation were performed 2D and real time 3D TEE.Zero degree,45°,90° and 135° plane were acquired by 2D TEE and Flexi Slice remolding. Maximum and minimum values of ostium of left atrial appendage were acquired in the short axis view of LAA by Flexi Slice remolding.Results Compared with 2D TEE,values acquire by Flexi Slice in measurement of LAA ostium showed no significant difference(P >0.05).The depth measurement by Flexi Slicein 45° and 90° plane showed significant difference with 2D TEE (P-values were successively 0.045, 0.002),and in 0 and 135° plane showed no difference.All values measured by 2D TEE and Flexi Slices showed significant correlation.Bland-Altman plot showed that 94.29% of plots were among limits of agreement,which was (-2.5 mm,2.9 mm).The maximum values of LAA ostium values ranged from 30° to 160°,among which 87% (40/46 cases)distributed between 90° and 1 50°,and minimum values ranged from 0°to 160°,among which 85%(39/46 cases)distributed between 0°and 60°.Conclusions Measurement of LAA can be well achieved by Flexi Slice imaging,which showed significant advantage compared with 2D TEE.