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目的:评价各种成像技术(传统X线检查、核素显像、CT、血管造影)诊断PAVM的价值,提高对PAVM的认识。材料和方法:回顾性分析了12例经手术/血管造影证实PAVM影像学资料。结果:胸部传统X线检查12例,8例提示PAVM;肺灌注核素显像6例,均提示胸内右向左分流;CT检查5例,诊断PAVM3例;血管造影12例,均确诊为PAVM。结论:临床上除外心脏疾患引起的缺氧症状,胸部X线检查显示单发或多发结节影,透视大小及形态能改变,存在异常引流血管影者应高度怀疑PAVM。肺灌注核素显像具有筛查作用,CT扫描对诊断有一定的帮助,血管造影具有确诊价值。
OBJECTIVE: To evaluate the value of various imaging techniques (conventional X-ray, radionuclide imaging, CT, angiography) in the diagnosis of PAVM and to improve understanding of PAVM. Materials and Methods: Retrospective analysis of 12 cases of PAVM imaging confirmed by surgery / angiography. Results: There were 12 cases of chest X-ray and 8 cases of PAVM. Six cases of pulmonary perfusion nuclide imaging showed right chest to left shunt. CT was performed in 5 cases, PAVM was diagnosed in 3 cases and angiography was performed in 12 cases PAVM. CONCLUSIONS: In the absence of clinically significant heart disease, hypoxemia, chest X-ray examination showed single or multiple nodules, fluoroscopy size and morphology can change, there is abnormal drainage of blood vessels shadow should be highly suspected PAVM. Lung perfusion nuclide imaging with screening, CT scan has some help in the diagnosis, angiography has a definite value.