双源CT双能量成像对尿路结石成分的定性分析

Qualitative Analysis of Dual-source CT Dual-energy Imaging in Urinary Calculi

目的:研究分析双源CT双能量成像对尿路结石成分的定性分析。方法:选取广东省潮州市中心医院放射科在2023年3月-2024年12月期间接受检查的286例尿路结石患者作为研究对象,所有患者均采取双源CT双能量成像与传统螺旋CT单能量成像检查,采用红外线光谱法测定结石成分,对比分析尿路结石成分差异。结果:286例患者经红外线光谱法检测,结石共计598枚,其中纯成分结石402枚(占比为67.22%)、混合成分结石196枚(占比为32.78%),按照结果进行结石分组,分为尿酸结石组、混合尿酸结石组、胱氨酸结石组、磷酸镁铵结石组、磷酸钙结石组、草酸钙和磷酸氢钙结石组,每组结石数量分别为91枚、63枚、123枚、100枚、134枚、87枚。采用双源CT双能量扫描,计算100 KV和140 KV图像结石的双能比、双能差和双能指数,各组的上述指标对比存在差异(P<0.05);而组间两两对比,胱氨酸与混合尿酸、磷酸钙与草酸钙和磷酸氢钙结石两两组间比较,均未存在着明显差异(P>0.05),而其余组两两作比较则存在着显著差异(P<0.05)。结论:在尿路结石成分定性分析中,采用双源CT双能量成像检测有着确切优势。

Objective:To study and analyze the qualitative analysis of Dual-source CT dual-energy imaging in urinary calculi.Methods:286 patients with urinary tract stones who underwent examination in the Radiology Department of Chaozhou Central Hospital in Guangdong Province from March 2023 to December 2024 were selected as the study subjects.All patients underwent dual source CT dual energy imaging and traditional spiral CT single energy imaging examinations,and the composition of the stones was determined using infrared spectroscopy.Comparative analysis of differences in the composition of urinary tract stones.Results:A total of 598 stones were detected by infrared spectroscopy in 286 patients,including 402 pure component stones(67.22%)and 196 mixed component stones(32.78%).According to the results,the stones were divided into uric acid stone group,mixed uric acid stone group,cystine stone group,magnesium ammonium phosphate stone group,calcium phosphate stone group,calcium oxalate and calcium hydrogen phosphate stone group,with 91,63,123,100,134,and 87 stones in each group.Using dual source CT dual energy scanning,the dual energy ratio,dual energy difference,and dual energy index of 100 KV and 140 KV image stones were calculated.There were differences in the above indicatorsamong the groups(P<0.05).However,there was no significant difference(P>0.05)in pairwise comparison between the two groups,including cystine and mixed uric acid,calcium phosphate and calcium oxalate and calcium hydrogen phosphate stones,while there were significant differences(P<0.05)in pairwise comparison between the other groups.Conclusion:Dual-source CT dual-energy imaging has definite advantages in qualitative analysis of urinary calculi.