320层螺旋CT在输尿管结石测量中的临床价值  

The clinical value of 320 multi-slice CT in measurement of ureteric stone

作　　者：赵君禄[1] 聂关伟[2] 赵德园 王猛[1] 任庆云[1] ZHAO Jun-lu;NIE Guan-wei;ZHAO De-yuan;WANG Meng;REN Qing-yun(Department of Radiology, the First Hospital of Hebei Medical University, Shijiazhuang 050031, China;Department of Operating Room, the First Hospital of Hebei Medical University, Shijiazhuang 050031, China)

机构地区：[1]河北医科大学第一医院放射科,河北石家庄050031 [2]河北医科大学第一医院手术室,河北石家庄050031

出　　处：《河北医科大学学报》2020年第9期1050-1052,1083,共4页Journal of Hebei Medical University

摘　　要：目的探讨320层螺旋CT在输尿管结石测量中的临床价值。方法回顾性分析100例输尿管结石患者的临床资料,应用东芝Aqulion One 320层螺旋CT对输尿管全程进行扫描,在横断面及多平面重建技术中的冠状面重建图像上测量结石最大直径及面积,容积重建(volume rendering,VR)重建后测量结石体积。结果100例患者冠状面重建图像组测量结石的平均最大直径和最大面积大于横断面图像(P<0.05)。VR重建后测量结石体积24~3060 mm^3。与冠状面重组图像测量相比较,对于<5 mm的输尿管结石在横断面图像上有37%结石的最大直径被低估。结论多层螺旋CT扫描中横断面图像测量结石最大直径会低估结石的真正最大直径;冠状面重建图像测量结石大小的准确性高于横断面图像测量。VR重建后测量的结石体积有助于临床选择处理方法。Objective To determine the clinical value of 320-slice spiral CT in the measurement of ureteral calculi.Methods All patients who underwent unenhanced 320 multi-slice CT scan for the evaluation of ureteral colic were evaluated.Maximal stone diameter was measured respectively in 2 dimension in axial and reformatted coronal sections.Results The average maximum diameter and maximum area of the calculus measured in the coronal reconstruction image group of 100 patients were larger than the cross-sectional image(P<0.05).The volume of the stone was 24-3060 mm^3.There was 37%underestimation of maximal stone diameter in axial plane for all stones as compared with measurement on coronal reconstruction.Conclusion Measuring the ureteric stone diameter on axial plane of 320 multi-slice computed tomography(MSCT)scan underestimates size of ureteric stone,coronal reformatted plane be used size estimation.The volume measurement of calculi after volume rendering(VR)reconstruction is helpful for the clinical selection of follow-up treatment for ureteral calculi.

关 键 词：输尿管结石 体层摄影术 螺旋计算机 图像处理 计算机辅助 

分 类 号：R693.4[医药卫生—泌尿科学]