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目的评价80 k V大螺距20 m L对比剂迭代重建的CT肺动脉成像(CTPA)的影像质量、辐射剂量和诊断的准确性。方法 100例疑有肺栓塞的病人被随机分为2组(每组
Objective To evaluate the imaging quality, radiation dose and diagnostic accuracy of CT pulmonary arteriography (CTPA) reconstructed with 20 m L large pitch 20 m L contrast medium. Methods 100 patients suspected of pulmonary embolism were randomly divided into two groups (each group