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作者为了比较不使用对比剂的螺旋CT三维显示、平片、肾X线体层摄影在检测及测量肾结石方面的准确性,对设置有50颗结石的人体腹部模型用上述三种方法分别进行检查。这个以丙烯酸为材料的腹部模型模拟一中等身材人的腹部;由培养细菌用的琼脂模拟肾实质。在模型肾中置人29颗病人的肾结石和21颗由关节复合物碾磨而成的人造结石以碳酸钙为主要成分,沿上下12cm长的距离排列。用临床常用设备对模型进行平片和线性肾体层摄影,采用常规曝光参数(65kVp,160mAs,0.6mm
In order to compare three-dimensional spiral CT without contrast media, plain radiography and renal X-ray tomography in the detection and measurement of renal calculi accuracy, the body provided with 50 stones in the human body abdominal model by the three methods were separately an examination. The acrylic model of the abdomen mimics the abdomen of a medium-sized human; simulating the renal parenchyma with agar for bacterial culture. In the model kidney, 29 patients were placed in kidney stones and 21 artificial joints made of artificially ground stone with calcium carbonate as the main component, arranged along the length of 12 cm. The model was plain film and linear renal slice with common clinical equipment. The parameters of exposure (65kVp, 160mAs, 0.6mm