摘要
目的 :探讨用门控心血池显像在诊断各期高血压的左室功能改变的意义。方法 :选取门控心血池检查且临床资料齐全者共 10 0例 ,其中一期 2 0例 ,二期 37例 ,三期 43例。正常对照组 5 0例。用SPOPHY DS7型 SPECT,配低能平行孔通用准直器 ,常规9m Tc- Rbc体内标记法。由 ECG R波触发门电路 ,行左室门控核素心血池显像 ,每一 R- R间期采集 16帧 ,约 40 0～ 6 0 0个心动周期。用 FRANKFURT门处理程序 ,自动产生各自时相图、时相直方图及振幅图和下列指标 :左室整体射血分数 GEF(% ) ,左室舒张末期容积 EDV(ml) ,收缩前期时间 PEP(ms) ,高峰射血时间 TPE(ms) ,舒张末到收缩末时间 ES(ms) ,高峰充盈时间 TPF(ms) ,快速充盈时间 RFT(ms) ,高峰射血率PER(l/ s) ,高峰充盈率 PFR(l/ s)及心室相角程 PS(度 )等。结果 :高血压病各期心功能参数与正常组比较均有明显差异 ,但各期之间除 EDV在高血压病三期明显增大外 ,其它各指标未见差别 ;时间参数比较 ,PEP、TPE、TPF在高血压病三期明显延长。心功能于 3～ 4级时 ,各项参数较 1级者明显为差。相关分析表明高血压病的分期与 EDV和年龄相关 (r>=0 .2 6 ,P<0 .0 1) ,但不如临床心功能分级关系密切 (r=0 .5 5 ) ;PFR、GEF。
Aim:To investigate the hypertensive left ventricular functions by 99 m Tc Rbc gated control heart blood image Methods: 99m Tc Rbc gated control heart blood image were carried out in 100 cases of hypertensive patients(Ⅰ stage 20 case,Ⅱ stage 37,Ⅲ stage 43) and 50 cases controls. The ventricular ejection fraction(EF%),left ventricular diastolic end volume(EDV),left ventricular ejective fraction(GEF),systolic early time(PEP),peak ejective time(TPE),time from diastolic end to systolic end(ES),peak filling time(PFT), peak filling rate(PFR), and phase shift(PS), were analyzed. Results:EDV in Ⅲ stage hypertension was enlarged significantly. PEP,TPE,TPF were prolonged in Ⅲ stage hypertension. In heart function of 3～4 stage the GEF,EDV,PER,PFR,PS were obviously poor than the 1～2 stages and control. Conclusion:The 99m Tc Rbc labelled method may be an objective, truthful method for detection of heart function in hypertension.
出处
《高血压杂志》
CSCD
2000年第2期120-122,共3页
Chinese Journal of Hypertension
关键词
门控心血池显像
高血压
心功能诊断
hypertensive heart function
99m Tc Rbc labelled method
