CAJ | 학술논문

目的评价超声心动图多种方法测量右心室容积的准确性.方法 46例健康志愿者,男30例,女16例,年龄18～59岁,平均(34±14)岁,在24 h内进行常规二维超声心动图(2-DE)、实时三维超声心动图(RT-3DE)及心脏磁共振(cMRI)检查.2-DE计算右心室容积采用Simpson法、对切半椭圆体法和双平面面积-长度法进行.RT-3DE图像分别采用三平面成像法及TomTec 4D RV-Function CAP软件进行右室容积计算.cMRI图像采用Argus软件计算右室容积.右室容积分别测量右室舒张末期容积(RVEDV)和右室收缩末期容积(RVESV).将超声测量结果与cMRI结果进行对比研究,两种方法的一致性评价采用Bland-Altman分析.结果 ①与cMRI相比较,Simpson法、对切半椭圆体法及三平面法所测右室容积低估,差异有统计学意义(P＜0.05);双平面面积-长度法及TomTec 4D RV-Function CAP所测右室容积差异无统计学意义(P＞0.05);②相关分析表明,Simpson法及三平面法与cMRI测值相关性较差(r=0.3～0.4).TomTec 4D RV-Function CAP、对切半椭圆体法及双平面-面积长度法右心室容积测值均与cMRI右心室容积测值高度相关(r=0.7～0.8,P＜0.001).③超声测值与cMRI测值进行Bland-Altman分析显示,TomTec法及双平面面积-长度法与cMRI的右室容积测值的平均差值更小、一致性界限更窄.结论 RT-3DE的TomTec 4D RV-Function CAP三维重建软件及2-DE的双平面面积-长度法能够准确测量右心室容积.
목적 평개초성심동도다충방법측량우심실용적적준학성.방법 46례건강지원자,남30례,녀16례,년령18～59세,평균(34±14)세,재24 h내진행상규이유초성심동도(2-DE)、실시삼유초성심동도(RT-3DE)급심장자공진(cMRI)검사.2-DE계산우심실용적채용Simpson법、대절반타원체법화쌍평면면적-장도법진행.RT-3DE도상분별채용삼평면성상법급TomTec 4D RV-Function CAP연건진행우실용적계산.cMRI도상채용Argus연건계산우실용적.우실용적분별측량우실서장말기용적(RVEDV)화우실수축말기용적(RVESV).장초성측량결과여cMRI결과진행대비연구,량충방법적일치성평개채용Bland-Altman분석.결과 ①여cMRI상비교,Simpson법、대절반타원체법급삼평면법소측우실용적저고,차이유통계학의의(P＜0.05);쌍평면면적-장도법급TomTec 4D RV-Function CAP소측우실용적차이무통계학의의(P＞0.05);②상관분석표명,Simpson법급삼평면법여cMRI측치상관성교차(r=0.3～0.4).TomTec 4D RV-Function CAP、대절반타원체법급쌍평면-면적장도법우심실용적측치균여cMRI우심실용적측치고도상관(r=0.7～0.8,P＜0.001).③초성측치여cMRI측치진행Bland-Altman분석현시,TomTec법급쌍평면면적-장도법여cMRI적우실용적측치적평균차치경소、일치성계한경착.결론 RT-3DE적TomTec 4D RV-Function CAP삼유중건연건급2-DE적쌍평면면적-장도법능구준학측량우심실용적.
Objective To evaluate the accuracy of methods in echocardiographic measurements of right ventricular (RV) volume.Methods Forty-six healthy volunteers were examined by two dimensional echocardiography (2-DE),real time three-dimensional echocardiography (RT-3DE) and cardiac magnetic resonance imaging (cMRI) within 24 hours.2 DE adopts three methods to measure RV volume,the first is Simpson,the second is the half ellipsoid method,and the last is biplane area-length method.In RT 3DE,RV volume were calculated respectively by tri-plane method and TomTec 4D RV-function CAP software.In cMRI,RV volume was calculated by Argus software.Right ventricular end diastolic and end-systolic volume (RVEDV,RVESV) were measured respectively.Then the echo measurement were compared to cMRI.Consistency of two methods was evaluated by Bland-Altman analysis.Results ①As compared to cMRI,Simpson,the half ellipsoid method and tri-plane method underestimated RV volume,with statistical significance(P ＜0.05).Biplane area-length method and TomTec 4D RV-Function CAP had no significant statistical difference (P ＞ 0.05).② The result of correlation analysis was as follows:RV volumes from Simpson and tri-plane method had bad correlation with those from cMRI (r =0.3-0.4).RV volumes from TomTec,half ellipsoid method and biplane area length method correlated highly with those from cMRI(r =0.7-0.8).③The Bland-Altman analysis of echo methods with cMRI showed that each measurement by TomTec and biplane area-length method had a smaller limit of the agreement and a smaller difference average.Conclusions Tom-Tec 4D RV-Function CAP in RT-3DE and biplane area length method in 2-DE can measure RV volumes accurately.