摘要
目的评价ECToolbox软件中R0、R1、R2公式计算门控心肌灌注显像左心室射血分数(LVEF)的适用性。方法64例患者[冠状动脉粥样硬化性心脏病(CHD)44例;高血压病20例]接受静息态门控心肌灌注显像(99mTc-MIBI)和平衡法门控心血池显像(99mTc-RBC),用ECToolbox软件中的R0、R1、R2公式分别计算LVEF,称为R0LVEF、R1LVEF、R2LVEF。将三种公式的计算结果与平衡法门控心血池显像计算结果对比分析。结果R0、R1、R2公式LVEF值与门控心血池显像LVEF值均有相关性(r=0.905、0.905、0.903,P均<0.05);χ2检验三种公式LVEF值落入门控心血池显像LVEF值±15%准确率分别为54.30%、71.40%、22.90%,±30%的准确率为81.40%、88.60%、74.30%;Wilcoxon配对检验结果示R1公式计算结果与门控心血池显像计算结果差异无统计学意义,R0、R2公式计算结果与门控心血池显像计算结果差异有统计学意义。结论门控心肌灌注显像用ECToolbox软件计算CHD和高血压患者的LVEF时,R1公式最为适用。
Objective To evaluate the applicability of formula R0, R1, R2 of ECToolbox software in measurement of left ventricular ejection fraction （LVEF） with gated myocardial imaging. Methods Rest gated myocardial SPECT with 99roTe MIBI and rest gated blood-pool SPECT with 99mTc RBC were performed on 64 patients （44 with CHD, 20 with hyperten sion）. LVEFs were separately calculated with formula R0, R1, R2 of ECToolbox software, and the results were recorded as R0 LVEF, R1 LVEF and R2 LVEF, respectively, and compared with LVEFs from gated blood-pool imaging （GBPI LVEF）. Results The LVEFs from formula R0, R1 and R2 were all significantly correlated with GBPI LVEF （r=0. 905, 0. 905 and 0. 903, P〈0.05, respectively）. The accuracy within ± 15% deviation from the GBPI LVEF was 54.30%, 71.40% and 22.90%, and within ±30% was 81.40%, 88. 60%, 74.30%, respectively. The differences among R0 LVEF, R2 LVEF and GBPI LVEF were statistically significant （P〈0.05）, while between R1 LVEF and GBPI LVEF was not （P〉 0.05）. Conclusion The formula R1 of ECToolbox software is most applicable in measuring LVEF with gated myocardial imaging.
出处
《中国医学影像技术》
CSCD
北大核心
2010年第2期330-332,共3页
Chinese Journal of Medical Imaging Technology
关键词
左心室射血分数
门控心肌灌注显像
门控心血池显像
Left ventricular ejection fraction
Gated myocardial imaging
Gated blood-pool imaging
