利用放射性核素显像分析肺栓塞病因

目的探讨肺栓塞(PE)患者肺内栓子来源以及下肢静脉病变及其他诱因与PE发病之间的关系。材料和方法对93例临床高度怀疑肺栓塞/下肢静脉病变的患者，应用99mTc-MAA和99mTc-GP，进行肺灌注-通气显像及99mTc-MAA下肢静脉显像。结果肺灌注-通气显像显示86例患者为多发性肺栓塞，7例患者肺灌注-通气显像正常；PE组中，61例有下肢深静脉病变，占70.9％，其中由下肢髂、股静脉血栓引起的PE者46例，占PE合并下肢静脉病变者的75.4％。结论放射性核素肺灌注-通气显像及下肢静脉显像的联合应用可明确PE及其病因诱因的诊断，从而减少临床PE的误漏诊率。

A Causal Analysis of Pulmonary Embolism Using Radionuclide Imaging

Purpose: To evaluate the relationship between deep venous thrombois (DVT) and pulmonary ebbolism (PE) with radionuclide imaging. Materals and Methods: 93 patients of highly suspected PE, with or without lower extremity venous thrombosis, undervent pulmonary perfusion/ventilation imaging and lower extremity venous imaging with ~(99m)Tc-MAA and ~(99m)Tc-Gp. Results: 86 patients were diagnosed PE because of the mismatch of their lung per fusion and ventilation images, 7 were normal. Among 86 PE cases, 61 were complicated with lower extremity venous disorders (70.9% ), of them, obstructions above femoral vein were found in 46 cased (75.4 % ). Conclusion: It is effective to diagnose PE and its causes with combinatin of pulmonary perfusion/ventilation imaging and lower extremity venous imaging.