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根据120例人体内外胆囊结石的CT4种密度分类和CT 值测试与化学成分的定性和定量分析对比表明:高密度者属胆色素钙类石;低、等密度者属胆固醇类石;混合密度者属混合类石.其中高密度结石的CT 值与胆色素钙含量呈正相关性r=0.69,P<0.01.低密度结石的CT 值与胆固醇含量呈负相关性r=-0.67,P<0.01.选择4种密度高体结石(各10例)经MTBE 溶解试验证明:等、低密度组平均溶解减重效果最好,为0.207和0.168g 混俣密度组次之为0.144g,高密度组最差为0.044g.溶解率分别为60%,58%,46%和17.6%.前3组与高密度组比较溶解度具有显著差别,P<0.01.前3组之间比较无明显差别,P>0.05.选择4种密度结石(各5例)大小0.5～1.5cm者经震波碎石200～470次试验表明:等、混合密度组敏感,全部击碎大小为3nun.低密度组次之,高密度组最差.本研究结论:CT 可用于胆囊结石临床的化学成分预测,以此进行的溶石和碎石试验结果,为临床开展溶石和体外震波碎石等治疗提供了适应证选择的科学根据.
According to the CT4 density classification and CT value tests of 120 cases of human internal and external gallbladder stones and the qualitative and quantitative analysis of chemical components, the comparison shows that: the high density is a kind of bile pigment calcareous stone; Which is a mixed type of stone.The CT value of high density stone and bile pigment calcium content was positively correlated r = 0.69, P <0.01. Low density stone CT value and cholesterol content was negatively correlated r = -0.67, P <0.01. The results of MTBE dissolution test showed that the average dissolution weight gain of the low-density group was the best, 0.207 and 0.168g mixed density group was 0.144g, the highest density group The difference was 0.044g, the dissolution rates were 60%, 58%, 46% and 17.6%, respectively.The solubility of the former three groups was significantly different from that of the high density group, P <0.01. There was no significant difference between the first three groups, P> 0.05. Select 4 kinds of density stones (5 cases each) size 0.5 ~ 1.5cm by shock wave lithotripsy 200 ~ 470 tests showed that: mixed density group sensitive, the size of all crushed 3nun. Low density group followed by high Density group worst.Conclusion: CT can be used to predict the chemical composition of the clinical gallbladder stones, the limestone and gravel test carried out If, for the conduct of clinical RONGSHI and ESWL therapy provides indications selected scientific basis.