^99Tc^m-MIBI心肌灌注显像及^18F-FDG PET心肌代谢显像探测左心室室壁瘤心肌存活性的临床价值  被引量:5

Impact of viable myocardium assessed by ^99Tc^m-MIBI SPECT and ^18SF-FDG PET imaging on clinical outcome of patients with left ventricular aneurysm underwent revascularization

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作  者:张晓丽[1] 刘秀杰[1] 胡盛寿[2] Thomas Schindler 田月琴[1] 高润霖[3] 吴清玉[2] 魏红星[1] 杨秀滨[2] 王浩[4] 何作祥[1] Heinrich R.Schelbert 

机构地区:[1]中国医学科学院北京协和医学院心血管病研究所阜外心血管病医院核医学科,100037 [2]中国医学科学院北京协和医学院心血管病研究所阜外心血管病医院心外科,100037 [3]中国医学科学院北京协和医学院心血管病研究所阜外心血管病医院心内科,100037 [4]中国医学科学院北京协和医学院心血管病研究所阜外心血管病医院超声科,100037 [5]美国加州大学David Geffen医学院分子医学药理系

出  处:《中华心血管病杂志》2008年第11期999-1003,共5页Chinese Journal of Cardiology

摘  要:目的评估^99锝^18-甲氧基异腈(^99Tc^m-MIBI)单光子发射计算机断层(SPECT)心肌灌注显像及^18F-脱氧葡萄糖(FDG)正电子发射断层(PET)心肌代谢显像探测左心室室壁瘤(室壁瘤)心肌存活性的临床价值。方法46例确诊为室壁瘤合并左心功能不全[左心射血分数(LVEF)36%±7%],行^99Tc^m-MIBI SPECT+^18 F-FDGPET显像,并接受血运重建术的患者,随访(80±27)个月。根据室壁瘤是否有存活心肌[灌注一代谢不匹配分(MMS)≥2.0分]以及是否行室壁瘤切除术,将患者分为4个小组:室壁瘤无存活心肌(A组):血运重建术为A1组(n=8),血运重建术+瘤切除术为A2组(n=15);室壁瘤有存活心肌(B组):血运重建术为B1组(n=10),血运重建术+瘤切除术为B2组(n=13)。结果A1、A2、B1、B24个组心脏事件发生率分别为25%(2/8),40%(6/15),20%(2/10)和31%(4/13)(P〉0.05)。除A1组外,其他各组的术后左心功能均得到明显改善(P〈0.05)。多因素logistic回归分析筛选出与术后LVEF改善相关的独立影响因素,为左心室的MMS(OR=2.34,95%CI1.08—5.06,P〈0.05),非室壁瘤部位的心肌灌注分(OR=0.24,95%CI 0.07~0.85,P〈0.05)和远端血管病变(OR=0.008,95%CI 0.001~0.560,P〈0.05)。结论室壁瘤接受血运重建术的患者,长期预后良好。室壁瘤部位有存活心肌的患者,单纯的血运重建术也可以明显改善左心功能,且与心肌存活的量相关。Objective To evaluate the impact of viable myocardium assessed by ^99Tc^m-MIBI SPECT and ^18F-flourodeoxyglucose(FDG) PET imaging in patients with left ventrieular aneurysm(LVA) underwent revascularization (RVS). Methods Forty-six consecutive patients with LVA ( mean LVEF 36% ± 7% ), underwent ^99Tc^m-sestamibi SPECT and ^18F-FDG PET examinations and received RVS therapy, were followed-up for a mean period of 80 ± 27 months. Viable myocardium in aneurysm was defined as perfusion- metabolism mismatch score (MMS) ≥2. 0. Patients were divided into four groups by aneurysm viability and aneurysmectomy. Group A1 (n = 8): viability-; Group A2 (n = 15): viability-, aneurysmectomy; Group B1 ( n = 10 ) : viability + ; and Group B2 ( n = 13 ) : viability +- aneurysmectomy. Results The cardiac event rates during follow up were similar among groups [ AI (25%, 2/8 ), BI (40% , 6/15 ), A2 (20%, 2/10)and B2 (31%, 4/13;P 〉0. 05J. After revascularization, LVEF was improved ( 〉 10% ) in groups A2, B1 and B2 ( P 〈 0. 05 ). Multivariate logistic regression analysis showed that LV-MMS ( OR =2.34, 95% CI 1.08 - 5.06, P 〈 0. 05), distal vessel disease ( OR = 0. 008, 95% CI 0. 001 - 0. 560, P 〈 0. 05 ) and nonaneurysm perfusion score ( OR = 0. 24, 95% CI 0. 07 - 0. 85, P 〈 0. 05 ) were significantly associated with the improvement of LVEF after revascularization. Conclusions Long term cardiac events rate post revascularization was not affected by viable myocardium or aneurysmectomy in LVA patients. Viable myocardium in LVA patients was associated with better LVEF improvement after revascularization.

关 键 词:心肌梗死 体层摄影术 发射型计算机 心脏室壁瘤 

分 类 号:R686[医药卫生—骨科学]

 

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