摘要
目的:比较99mTc-MIBI门控心肌灌注显像(G-MPI)测定冠脉支架术前后左心功能相关指标的变化,对手术疗效进行评价。方法:27例患者,术前及术后1~6个月行静息G-MPI测定左室舒张末期容量(EDV)、收缩末期容量(ESV)、左室射血分数(LVEF)并对室壁运动评分。根据术前LVEF分为2组:伴左室功能不全(LVEF≤45%)为Ⅰ组(12例),其余为Ⅱ组(15例)。结果:①Ⅰ组术后EDV、ESV比术前明显减少(P<0.01),LVEF增加(P<0.05);Ⅱ组上述指标手术前后无明显变化(P>0.05)。②术前室壁运动轻中度下降的节段术后82.3%有改善;严重下降29.3%有改善;无运动术后仅15.7%有改善。结论:静息G-MPI在冠脉支架术前及术后随访有重要的临床价值。
Abstract
Objective: To compare the changes of global and regional left ventricular function parameter before and after coronary artery stenting by using 99mTc-MIBI gated myocardial perfusion imaging(G-MPI) and to evaluate coronary artery stenting effect. Methods: The values of end-diastolic volume(EDV), end-systolic volume(ESV), left ventricular ejection fraction(LVEF) and regional wall motion were assessed by rest G-MPI before and 1 to 6 months after coronary artery stenting in 27 patients. All patients were divided into two groups: Group I(12 cases) involved patients with left ventricular dysfunction(LVEF≤45%); the rest were included in groupⅡ(15 cases). Results: ①After coronary artery stenting, the values of EDV and ESV were decreased markedly(P<0.01), LVEF was increased(P<0.05) compared with preoperation in group I. On the contrary, there were no significant changes of these indexes(P>0.05) in groupⅡ. ②There were 93(82.3%), segments improved postoperatively in mild and moderate hypokinesia, 12(29.3%) segments improved in severe hypokinesia, and 3(15.7%) in akinesia. Conclusion: G-MPI is an excellent tool to evaluate the effect of stent implantation, and suitable for long term follow-up.
关键词
心室功能 /
左 /
支架 /
门控血池显像
Key words
ventricular function /
left /
stents /
gated blood-pool imaging
冯建林;李殿富;程 旭;李建华;徐兆强.
门控心肌灌注显像对冠状动脉支架术前后左室功能的评价[J]. 中国临床医学影像杂志. 2006, 17(9): 496-498
FENG Jian-lin;LI Dian-fu;CHENG Xu;LI Jian-hua;XU Zhao-qiang.
Evaluation of gated myocardial perfusion imaging for detecting left ventricular function before and after coronary artery stenting[J]. Journal of China Clinic Medical Imaging. 2006, 17(9): 496-498
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