新式断层核素时相分析方法对预激综合征的应用价值  

New Tomographic Phase Analysis in Evaluating Wolff-Parkinson-White Syndrome

作　　者：牛铁生[1] 韩春起 罗锡圭 

机构地区：[1]中国医科大学第三临床学院心内科,,沈阳110021 [2]第一临床学院核医学科

出　　处：《中国医科大学学报》2001年第2期122-124,共3页Journal of China Medical University

摘　　要：目的 :探讨新式断层核素时相分析对预激综合征的旁道定位及对射频消融术疗效评价的应用价值。方法 :用核素门控心血池显像对 6 6例准备行射频消融术的预激综合征病人和 5 5例正常人进行平面和新式断层核素时相分析 ,并对 30例术后病人进行复查。用平面和断层时相分析对预激综合征病人进行旁道定位 ,并分别同射频消融术所证实的旁道定位与心电图的旁道定位对比。结果 :左、右侧旁道预激综合征的平均相角程同正常组相比增加 ,且均有显著差异。平面、断层核素时相分析与心电图的旁道定位准确率分别为 83.3%、93 .9%、79 0 %。预激综合征病人术后的平均相角程小于术前 ,同术前相比有显著差异 (P <0 .0 1)。结论 :核素时相分析可作为预激综合征辅助旁道定位手段。此外 ,核素时相分析尚可用于射频消融术的疗效评价。Objective: Our purpose was to evaluate a new kind of tomographic phase analysis in Wolff Parkinson White (WPW) syndrome . Methods:Planar and new tomographic gated blood pool scintigraphy were performed in 66 patients with WPW syndrome and 55 healthy subjects , in which 30 patients were examined again after radiofrequency ablation . The abnormal initial contractions in both planar and tomographic phase image were compared with the sites of accessory pathway (ACP) based on ECG and radiofrequency ablation .Results:The phase angle shift in WPW group was significantly different from that in healthy subjects .New tomographic phase analysis can detect the sites of ACP more precisely than planar phase analysis and ECG ( 93.9%, 80.3%, 79 0%, respectively ).The average phase angle shift in WPW group after operation was less than that before operation (P< 0.01 ) .Tomographic phase analysis discovered two mutiple ACPs and latent ACP that can not be found by ECG. Conclusion:The new tomographic phase analysis is a promising method to detect the sites of ACP and can be used to evaluate the efficacy of operation.

关 键 词：核素时相分析 预激综合征 射频消融术 

分 类 号：R541.77[医药卫生—心血管疾病]