目的探讨64排CT对上尿路结石成分分析的临床意义。方法选择肾盂结石及输尿管结石患者136例，64排CT扫描，对结石测量最大径和CT值，并对结石用红外光谱自动分析仪作成分分析。结果136例患者中纯结石患者78例，草酸钙结石和羟磷灰石结石的CT值显著高于L-胱氨酸结石和尿酸结石的CT值（P<0.01），草酸钙结石、羟磷灰石结石之间CT值差异无统计学意义，L-胱氨酸结石虽略高于尿酸结石CT值，但差异也无统计学意义。羟磷灰石结石CT值/结石最大横径较草酸钙结石差异有统计学意义（P<0.05），L-胱氨酸结石CT值/结石最大横径较尿酸结石差异有统计学意义（P<0.05）。结论采用64排CT对结石CT值进行测定并计算CT值/最大横面直径能更好的判断结石成分，对于指导选择治疗方法及用药方案有积极作用。%Objective To investigate the significance analysis of the upper urinary tract stones by 64-slice CT. 136 cases with pelvic stones and ureteral stones were choosen in department of urology,after admission they underwent 64-slice CT scanning and infrared stones component analysis. The CT value and the maximum diameter of calculi in patients were measured. Results Of the 136 patients 78 cases o,f patients were with pure stones,CT valuesof hydroxyapatite and calcium oxalate stones were significantly higher than that of L-cystine stones,uric acid stones CT values(P<0.01),calcium oxalate stones, hydroxyl apatite stone stones had no significant difference (P>0.05). Although L-cystine stones was slightly higher than that of CT values of uric acid stones,but no statistically significant difference were observed(P>0.05). CT value of hydroxyapatite stones / calculi maximum diameter appear significant difference than calcium oxalate(P<0.05),the maximum diameter of the L-cystine calculi CT value/maximum diameter compared with uric acid stones had significant difference (P<0.05). Conclusion 64-slice CT CT value of the stones and calculated CT value/maximum transverse diameter can judge stones better, which could guide the selection of appropriate clinical treatment regimen.
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