【摘要】 目的探讨双源CT在肾移植术前对活体供肾的评价价值。方法对93例活体供肾候选者行双源CT扫描,均采用平扫、动脉期、静脉期、排泄期四步扫描法进行扫描,应用多平面重组(MPR)、最大密度投影(MIP)及容积再现(VR)等技术进行后处理重建,分析肾血管、肾实质及集合系统的解剖结构和有无变异及病变。结果 93例中,双肾动脉正常59例,单侧、双侧肾动脉变异或异常34例,肾动脉多支供血28例,肾动脉过早分支9例,右肾动脉轻度粥样硬化2例,右肾静脉两支3例,左肾静脉压迫综合征2例。肾小囊肿21例,肾小结石8例,未发现集合系统畸形和病变。结论双源CT能清楚地显示肾血管正常解剖及变异、肾实质及集合系统情况,可作为活体肾移植供体术前检查的常规方法。更多还原

【Abstract】 Objective To explore the clinical value of dual-source CT in the preoperative assessment of living donors in kidney transplantation. Methods A total of 93 living donor kidney candidates underwent unenhanced,arterial phase,venous phase and excretory phase dual-source CT scanning. All images were reformed by multiplanar reconstruction( MPR),maximum intensity projection( MIP) and volume rendering( VR). Anatomical structure,variation and lesion of renal vessel,renal parenchyma and renal collecting system were observed in all patients. Results Among the 93 patients,normal double renal arteries were observed in 59,unilateral or bilateral renal artery variation or abnormity in 34,multiple renal arteries in 28,early branching of renal artery in 9,mild atherosclerosis of right renal artery in 2,multiple right renal veins in 3,left renal vein entrapment syndrome in 2,small renal cysts in 21,and small renal stones in 8. No deformity and lesion were found in renal collecting system. Conclusion Dual-source CT can clearly show the anatomical structure and variation of renal vessel and the deformity and lesion of renal collecting system. Therefore,dual-source CT can be used as the conventional method in preoperative examination of living renal donors.更多还原