宝石能谱CT原子序数法与红外光谱法分析泌尿系结石成分的效果比较

发布时间：2018-06-28 08:35

本文选题：成分分析 + 红外光谱法分析　；参考：《重庆医学》2017年33期

【摘要】：目的探讨宝石能谱CT原子序数法及红外光谱法分析泌尿系结石成分的效果,比较二者在尿路结石定性诊断的价值。方法对260例尿路结石患者术前行宝石能谱CT泌尿系扫描,使用原子序数法鉴定结石成分;取石术后,使用红外光谱法分析结石成分作为金标准,分析两种方法对结石成分鉴定的一致性。结果两种方法在鉴定结石类型方面一致性较好(Kappa=0.787,P0.01),差异无统计学意义(χ~2=6.581,P=0.254)。宝石能谱CT原子序数法测得的结石晶体成分类型较红外光谱法要少,对于同一化学成分结石不同晶体结构组成的结石精确定量尚不如红外光谱法精确(一水草酸钙与二水草酸钙)。结论两种方法对尿路结石成分分析均具有临床意义,应根据实际情况选择结石分析方法。
[Abstract]:Objective to study the effect of atomic number method and infrared spectrum method in the analysis of urinary calculi and to compare the value of the two methods in the qualitative diagnosis of urinary calculi. Methods 260 patients with urolithiasis were scanned by EDS CT before operation, and the stone components were identified by atomic number method, and the stone components were analyzed by infrared spectroscopy after lithotomy. Results there was good consistency between the two methods in identifying stone types (Kappa-0.787, P0.01), but there was no significant difference between them (蠂 ~ (2 / 2) 6.581 / P ~ (0.254). The crystal composition of stone measured by atomic number method of gemstone energy dispersive CT is less than that by infrared spectroscopy. The accurate quantification of stones with different crystal structure of the same chemical composition is less accurate than that of infrared spectroscopy (calcium oxalate monohydrate and calcium oxalate dihydrate). Conclusion the two methods are of clinical significance in the analysis of urinary calculi and should be selected according to the actual situation.
【作者单位】：海南省第三人民医院泌尿外科;
【基金】：三亚市医疗卫生科技创新项目(2014YW21)
【分类号】：R691.4;R816.7

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