【摘要】 目的 :探讨 99Tcm- MIBI门控心肌灌注显像 (G- MPI)在左束支传导阻滞 (LBBB)病人中诊断冠心病的价值。方法 :5 0例 LBBB患者均完成二日法门控负荷 /静息 MPI、心电图平板运动试验 (ETT)、超声心动图检查。比较 NG- MPI和 G- MPI在 L BBB病人中诊断冠心病的准确性 ,并对各种无创性诊断技术的诊断价值进行比较。结果 :G- MPI诊断的特异性和准确性方面要明显高于 NG- MPI(P<0 .0 5 ) ,G- MPI与 NG- MPI相比能明显提高对 LAD病变诊断的特异性和准确性 (P<0 .0 5 )。 G- MPI诊断的敏感性要高于 ETT,P<0 .0 5。在诊断的准确性方面 G- MPI与 ETT相比有极显著性差异 (P<0 .0 1)。结论 :门控心肌灌注显像在 LBBB病人中诊断冠心病具有较高的准确性 ,与非门控心肌显像和其它无创性诊断技术相比具有一定的优势。更多还原

【Abstract】 Objective: To investigate the diagnostic value of 99 Tc m-MIBI ECG-gated myocardial perfusion imaging (G-MPI) in left bundle branch block (LBBB) combined coronary artery disease. Methods: Fifty patients with LBBB were chosen in this study and all underwent loading/resting G-MPI, exercise treadmill test (ETT) and echocardiography. The diagnostic accuracy of each non-invasive method were compared. Results: The specificity and accuracy of G-MPI were significantly higher than NG-MPI (P<0.05). The sensitivity and accuracy of G-MPI were significantly higher than ETT (P<0.05, P<0.01). Conclusion: G-MPI had higher accuracy in diagnosing coronary artery disease in patients with LBBB.更多还原