Abstract：Objective To investigate the imaging signs and characteristics of 64-slice spiral CT in patients with blunt abdominal cavity perforation and mesentery injury.Methods A retrospective analysis of the date of 132 patients with blunt abdominal trauma admitted into our hospital from April 2015 to June 2017 was conducted.According to the injuries of patients,they were divided into the control group (n=65,blunt organ injury confirmed by surgery,without cavity perforation and mesenteric injury) and the observation group (n=67,with cavity perforation and mesenteric injury confirmed by surgery).Patients of both groups were examined with 64-slice spiral CT.The detection of CT signs of abdominal cavity or retroperitoneal pneumatosis,mesenteric thickening,intestinal wall thickening,increased mesangial density,increased abdominal fat gap density and peritoneal thickening were compared.The direct CT imaging signs of blunt abdominal cavity perforation and mesentery injury were analyzed.Results The abdominal cavity or retroperitoneal pneumatosis,mesenteric thickening,intestinal wall thickening,increased mesenteric density,increased abdominal fat gap density,and peritoneal thickening detection rates in the observation group were higher than those in the control group,and the differences were statistically significant (P<0.05).The direct CT signs of patients with blunt abdominal cavity perforation and mesenteric injury were pneumatosis in the abdominal cavity or retroperitoneum,increased density of the abdominal fat gap,and intestinal wall thickening.Conclusion The 64-slice spiral CT imaging features of blunt abdominal cavity perforation and mesenteric injury are manifested as abdominal or retroperitoneal pneumatosis,mesenteric thickening,intestinal wall thickening,increased mesenteric density,increased abdominal fat gap density,and peritoneal thickening,etc.,which are beneficial for diagnosis.
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