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[Objective]To study the relationship between bridging septa thickening in the perinephric space and split renal function in acute unilateral upper urinary tract obstruction.[Methods]50 patients with acute unilateral upper urinary tract obstruction by calculus were analyzed retrospectively. According to the images of multi-slice spiral CT (MSCT)scanning,all cases were divided into thickened bridging septa group(n=25)and normal bridging septa group (n=25),The CT values of renal cortical in the plain(CTp)and renal cortical enhancing(CTe)phase were measured, the difference of increasement value(CTe-CTp)and the CT value ratio of the ipsilateral and opposite in renal cortical phase was analyzed by independent sample T test.[Results]The CT increasement value of bridging septa thickening and normal group were(103±30)HU and(128±24)HU respectively,the difference between the two groups was statistically significant(P<0.01);and CTac/CTuc were 0.81±0.13 and 0.96±0.06 respectively(P<0.01).[Conclusion]Thickening of bridging septa in the perinephric space with acute unilateral upper urinary tract obstruction will weaken the enhancement of renal cortical,and increased the likelihood of split renal function impairing.
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Objective To analyze the typical imaging features of various internal biliary fistulas by multislice spiral CT (MSCT),and the diagnostic value.Methods the data of 56 cases of internal biliary fistula in Wuxi No.2 Affiliated Hospital of Nanjing Medical University from January 2011 to March 2018 were analyzed retrospectively.All cases were examined by MSCT plain scan and enhanced examination.The imaging features of various biliary fistula were analyzed and studied.Results Among 56 cases of biliary fistula,39 cases were gallbladder duodenum fistula,and the diagnostic sensitivity was 87.2％ (34/39).The total coincidence rate was 85.7％ (48/56).21 cases were fistula formation,and 11 cases of narrow neck syndrome.Gallbladder bile duct fistula,liver-gallbladder fistula,bile duct and duodenal fistula of 6 cases were showed.In 4 cases of complex gallbladder fistulas,3 cases showed fistula clearly including 2 cases of fistula and a "clover" sign.In the indirect CT signs of 56 cases of internal biliary fistula,the common imaging features:atrophy of gallbladder or incarceration,stone incarceration of biliary tract,gallbladder or choledochal duct and cavity viscera.Conclusion MSCT scan can not only distinguish the type of biliary fistula and the structure of fistula,but also display the fistula,shape,atrophy of gallbladder,gallbladder and bile duct gas,stone and surrounding conditions,which have important guiding significance for the formulation of the operation scheme.
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Objective To evaluate the diagnostic value of multi-slice spiral CT (MSCT)for traumatic spleen and liver rupture.Methods We made a retrospective analysis of 140 cases of liver and spleen injury with clinical manifestations confirmed by operation.MSCT examination results and clinical data were compared.Results Of the 140 cases,male patients outnumbered female ones,and the peak age was 10 - 30 years old.The injuries were most commonly attributed to traffic accident and falling.There were 69 (49%)cases of spleen injury,5 1 (36%) cases of liver injury,and 20 (14%)cases of both.Liver and spleen injuries showed on MSCT examination were liver and spleen laceration, hematoma within the liver and spleen as well as hematoma beneath the envelop. Conclusion MSCT has an important diagnostic value for traumatic liver and spleen rupture and thus can guide clinical treatment choice.