摘要
目的探讨MSCTU对肾发育不全和肾发育不良的诊断价值。方法观察35例肾发育不全及肾发育不良患者MSCTU影像学表现,分析各期扫描及后处理技术的诊断准确率。结果 MSCTU皮质期和髓质期及MPR对11例肾发育不全诊断准确率为81.82%,患肾呈结节状或囊状,增强扫描无强化,MPR无肾动脉显示,排泄期及延迟期肾盂肾盏内无对比剂充盈。MSCTU髓质期和排泄期及MPR对24例肾发育不全诊断准确率均为95.83%,延迟期诊断准确率为100%;患肾体积小,皮质薄,增强扫描皮质强化明显,MIP及VR图像显示肾动脉及静脉,排泄期及延迟期肾盂肾盏内对比剂充盈。结论 MSCTU多期增强扫描,尤其是延迟期扫描,结合图像后处理可以明显减少肾发育不全及肾发育不良的漏误诊,对其诊断及鉴别诊断具有明显的优势。
Objective To study the value of multi-slice computer tomography urography（MSCTU） in the diagnosis of renal hypoplasia and renaldydplasia. Methods The MSCTU findings of 35 cases renal hypoplasia and renaldyplasia were studied, and the diagnostic accuracy of different phases and post-progressing technology was analyzed respectively.Results In 11 cases of renal hypoplasia, the diagnostic accuracy was 81.82% in MSCTU cortical, medullar phase and MPR. The diseased kidney appeared as nodular or cystic form, no enhanced renal parenchyma can be seen in contrast enhancement scanning. There were no renal artery appeared in MPR of any phase. No contrast-medium can be seen in renal pelvis and calyxes in all excretory and delayed phase. In 24 renaldyplasia, the diagnostic accuracy was 95.83% in MSCTU medullar, excretory phase and MPR, and 100% in delayed phase. The volume of lesion kidney decreased, and cortex was thin. In contrast enhancement scanning, the cortex enhancement apparently, MIP and VR could show the renal artery and vein clearly. In excretory and delay phase, contrast-medium could be seen in pelvis and kidney calices. Conclusion MSCTU multi-phase contrast enhancement scanning, especially delayed phase, combined with image post-processing can decrease misdiagnose and missed diagnosis of renaldyplasia and renal hypoplasia, and have significant advantage in the diagnosis and differential diagnosis of them.
出处
《中国CT和MRI杂志》
2014年第9期23-25,38,共4页
Chinese Journal of CT and MRI
