摘要
目的探讨螺旋CT平扫在评估上尿路结石成分中的可行性。方法随机选取本院2018年10月至2019年3月收治的81例上尿路结石患者,收集患者临床及影像学资料,由两名高年资正高职放射科诊断医生采用双盲法进行阅片,用改良Mauer法定量滴定结石Ca2+、C2O42-、PO43-、尿酸、磷酸镁铵和胱氨酸的含量,测量病患ROI的面积以及平均的CT数值,比较不同成分上尿路结石CT值,将CT检查诊断结果进行讨论和分析。结果81例尿路结石患者中,结石成分占例最高的分别草酸钙类(34.56%)、尿酸及尿酸铵类(12.34%);不同单纯类型结石CT扫描的平均值比较存在明显差异,磷酸钙类、草酸钙类、碳酸钙类结石C T扫描值较高,分别为(1162.58±63.15)HU、(1069.58±71.66)HU、(765.48±49.80)HU;不同混合类型结石CT扫描的平均值比较存在明显差异,草酸钙加磷酸钙类结石CT扫描值最高,为(1354.25±49.82)HU,其次为碳酸磷灰石类型结石(943.56±76.11)HU;根据CT值进行上尿路结石性质诊断,CT平扫对纯尿酸结石诊断符合率为95.31%(61/64),C T平扫对非纯尿酸结石诊断符合率为94.11%(16/17)。结论不同成分上尿路结石的CT值存在明显差异,根据CT值能有效区分上尿路结石成分。
Objective To explore the feasibility of spiral CT plain scan in evaluating the composition of upper urinary calculi.Methods A total of 81 patients with upper urinary calculi admitted to our hospital from October 2018 to March 2019 were enrolled.The clinical and imaging data of 81 patients were collected.There were 2 senior radiologists with high post used double-blind methods to read data and used the modified Mauer method to quantitatively titrate the contents of Ca2+,C2O42-,PO43-,uric acid,ammonium magnesium phosphate and cystine,and to measure the ROI area of the patient and the average CT value.CT values of upper urinary calculi with different components were compared,and the results of CT examination were discussed and analyzed.Results Among the 81 patients with urinary calculi,the highest proportion of composition in calculi were calcium oxalate(34.56%),uric acid and ammonium urate(12.34%).There were significant differences in the mean values of CT scans for calculi of different types.The CT scan values of calculi of calcium phosphate,calcium oxalate and calcium carbonate stones were higher,(1162.58±63.15)HU,(1069.58±71.66)HU,(765.48±49.80)HU.There was a significant difference in the mean value of CT scans for calculi of different mixed types.The highest CT scan value of calculi of calcium oxalate plus calcium phosphate was(1354.25±49.82)HU,followed by calculi of carbonate apatite type,(943.56±76.11)HU.According to the CT value,the nature of upper urinary calculi was diagnosed.The diagnostic accuracy of CT plain scan for pure uric acid calculi was 95.31%(61/64),and the accuracy of CT plain scan for non-pure uric acid calculi was 94.11%(16/17).Conclusion The CT values of different components of upper urinary tract stones were significantly different.According to the CT values,the components of upper urinary tract stones could be effectively distinguished.
作者
王洲东
周泗维
陈帆
WANG Zhou-dong;ZHOU Si-wei;CHEN Fan(Urology Department,Shifang Second Hospital,Shifang 618400,Sichuan Province,China)
出处
《中国CT和MRI杂志》
2020年第11期144-147,共4页
Chinese Journal of CT and MRI
关键词
螺旋CT
上尿路
结石
成分
Spiral CT
Upper Urinary Tract
Calculi
Components
