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摘要目的研究低剂量扫描及迭代重建算法(IR)对影像噪声、对比度、分辨率以及对观察者发现低CT值衰减的肝脏微小病变检出率的影响,预估IR算法降低辐射剂量的潜
Abstract Objective To study the influence of low dose scanning and iterative reconstruction algorithm (IR) on the detection of image noise, contrast, resolution and the detection rate of small lesions of liver in patients with low CT attenuation. It is estimated that the IR algorithm can reduce the potential of radiation dose