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CT在发现肺孤立结节上优于X线摄影,但常规CT由于辐射剂量大不能应用于大规模的肺癌筛查,人们开始研究可用于筛查的低剂量CT,就低剂量螺旋CT研究的现状予以综述。
CT is superior to radiographic findings in the discovery of solitary pulmonary nodules, but conventional CT can not be applied to large-scale lung cancer screening because of its high radiation dose. People began to study low-dose CT scans that can be used for screening. For low-dose spiral CT studies The status quo is reviewed.