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目的建立猪模型,通过外周导管低速率注射对比剂(即3mL/s),应用伽马变量扩展模型来验证多层螺旋CT肾灌注测量的可靠性,并以荧光微球法作为参照进行对比。
Objective To establish a porcine model to verify the reliability of multi-slice spiral CT in renal perfusion by injecting contrast agent (3 mL / s) at a low rate through a peripheral catheter and by using a gamma-variable expansion model. Fluorescent microspheres were used as a reference for comparison.