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目的探讨多层螺旋CT容积显示技术对术前评价保留肾单位手术(NSS)的价值。方法对25例拟行NSS的患者进行多层螺旋CT(MSCT)扫描及容积显示(VR)成像,观察肾脏位置、肿瘤的部位、范围及与肾动静脉、集合系统的关系,并与术中对照,9例同时与DSA检查进行比较。结果MSCT及VR成像清楚显示了25例患者共32个肿块,与术中所见一致。VR成像显示肿块的部位、范围与术中所见一致。VR成像共显示了48条肾动脉中的45条(93.8%),显示了48条肾静脉中的42条(87.5%)。VR图像清楚显示了肾脏集合系统。结论MSCT及VR成像能为外科医生提供拟行NSS较为准确、全面、便捷、无创的信息,对手术有积极的指导意义。
Objective To investigate the value of multislice CT volume display in the evaluation of nephron sparing surgery (NSS). Methods Twenty-five patients undergoing NSS were examined by multi-slice spiral CT (MSCT) and volume imaging (VR). The location of the kidney, the location of the tumor and the relationship with the renal arteriovenous and collecting system were observed. Control, 9 cases were compared with DSA. Results MSCT and VR imaging clearly showed a total of 32 tumors in 25 patients, consistent with the findings. VR imaging showed mass sites, the scope and intraoperative findings. VR imaging showed a total of 45 of 48 renal arteries (93.8%), showing 42 of 48 renal veins (87.5%). VR images clearly show the kidney collection system. Conclusion MSCT and VR imaging can provide surgeons with more accurate, comprehensive, convenient and noninvasive information of proposed NSS, which has a positive guiding significance for surgery.