多层螺旋CT尿路成像在输尿管病变中的应用价值

Application value of multislice spiral CT urography in diagnosis of ureteral diseases

关键词:  体层摄影术  Ｘ线计算机  泌尿系统造影  利尿剂

Key words:  tomography, X-ray computed  CT urography  diuretic

摘要:

［目的］探讨多层螺旋CT尿路成像在输尿管病变中的应用价值。［方法］为35例拟诊断为输尿管病变的患者行多层螺旋CT尿路成像检查及图像三维重建，CT扫描包括平扫、皮质期、实质期、排泄期扫描共4期。对皮质期、实质期、排泄期的CT扫描图像分别重建，层厚2 mm，层间距1 mm，进行图像重组肾动脉成像、肾静脉成像、尿路成像。［结果］35例患者中，先天性输尿管疾病8例，输尿管结石11例，输尿管息肉2例，输尿管癌14例。所有患者均得到满意的肾动脉、肾静脉及尿路图像，图像诊断与其术后病理诊断及临床诊断符合。［结论］多层螺旋CT尿路成像可以得到优质图像，成为输尿管病变检查的首选方法。

Abstract:

［objective］To discuss the application value of multislice spiral CT urography in diagnosis of ureteral diseases.［Methods］Thirty-five patients with suspected ureteral lesion were studied by multislice spiral CT urography and 3D reconstruction. The course of the CT scan includes four steps that are plain scan, renal cortex phrase, renal parenchyma phrase and excretion phrase. The CT scan was performed with 1 mm thick slices, and 3D image of renal arteries, veins, and urinary passage was reconstructed with a 2 mm thickness.［Results］Among the 35 cases, there were 8 cases with congenital ureteral diseases, 11 cases with calculus of ureter, 2 cases with polyp of ureter, 14 cases with carcinoma of ureter. Satisfied 3D images of renal arteries, veins and urinary passage could be reconstructed. And the imaging diagnoses of 35 patients were all in accord with their clinical or pathologic diagnoses.［Conclusion］High-qualified images can be obtained from multislice spiral CT urography.This technique should become the preferred inspection item of Ureteral Diseases.