随着多排螺旋CT技术的发展及其在临床诊断中的应用,CT泌尿系造影(CT Urograghy,CTU)能明确显示泌尿系病变的位置、范围及性质。目前,CT泌尿系造影已经取代静脉肾盂造影和磁共振泌尿系造影,成为血尿患者的主要检查方式。但已有文献报道,螺旋CT检查的高辐射剂量可能与患者恶性肿 With the development of MSCT and its application in clinical diagnosis, CT Urography (CTU) can clearly show the location, range and nature of urologic lesions. At present, CT urography has replaced intravenous pyelography and magnetic resonance urography, a major test for patients with hematuria. However, it has been reported in the literature that the high radiation dose of spiral CT may be related to the malignancy of patients