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目的对进行CTA检查的病人原始数据应用迭代重建与滤过反投射法(FBP)两种方法进行比较以评价减少放射剂量的可能性。方法采用128层双源CT行胸腹CTA的病人共25例,管电压120kV,FBP重组的全剂量影像(FD-
Objective To compare the two methods of iterative reconstruction with filtered back projection (FBP) for raw data of patients undergoing CTA to evaluate the possibility of reducing radiation dose. Methods Thirty-five patients with thoracoabdominal CTA under 128-slice dual-source CT were enrolled. The total voltage of FB-