B超与多层螺旋CT在髓质海绵肾诊断中的价值对比

摘要

目的：分析髓质海绵肾(MSK)的B超和多层螺旋CT(MSCT)影像学表现特点，以提高其临床诊断水平。方法：回顾性分析40例经病理或临床证实的MSK患者，按检查方法的不同，将其分为A组和B组，每组20例。A组采用B超检查，B组采用MSCT检查，比较两种检查方法的影像表现及诊断准确率。结果：B超检查提示，肾髓质内强回声团或强回声斑块，沿着肾锥体呈放射状排列，强回声团边缘毛糙，大小较为一致，内见小无回声区；MSCT检查提示，锥体内多发小斑点状结石，增强扫描扩张的集合管内结石周围有对比剂充盈，无结石的扩张集合管呈条纹状或小囊状对比剂积聚。MSCT的准确率略高于B超，但两者的比较差异无统计学意义(x2=2.057，P＞0.05)。结论：MSK具有典型的B超、MSCT表现，两者结合检查更有利于临床诊断。%Objective:To analyze the ultrasound and CT imaging findings of medullary soonge kidney, to improve the diagnosis level of medullary soonge kidney.Methods: Fourty cases confirmed by pathology or clinical were divided into two groups, group A: 20 cases by B ultrasonic examination, group B: 20 cases by CT examination, The two groups of imaging data were retrospectively analyzed.Results: Ultrasound examination reveals strong echo mass or strong echo plague in the renal medulla, radiate out along the renal pyramid, Strong echo edge is coarse, same size, within small anechoic areas. MSCT finds multiple small mottled stones in the cone. Enhanced scan finds contrast agent filling around renal collecting duct stones, presents visible stripes or small cystic contrast agent accumulation when no stones in renal collecting duct. CT diagnosis coincidence rate is slightly higher than that of ultrasounds, but there was no significant differences in positive rate(x2=2.057,P>0.05).Conclusion: Medullary sponge kidney has a typical ultrasound, CT performance. A combination of them is conducive to clinical diagnosis.