Korean Journal of Radiology

The Korean Society of Radiology (대한영상의학회)
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Multidetector CT Findings of Bowel Transection in Blunt Abdominal Trauma

  • Cho, Hyun Suk (Department of Radiology, Hallym University College of Medicine, Kangnam Sacred Heart Hospital) ;
  • Woo, Ji Young (Department of Radiology, Hallym University College of Medicine, Kangnam Sacred Heart Hospital) ;
  • Hong, Hye-Suk (Department of Radiology, Hallym University College of Medicine, Kangnam Sacred Heart Hospital) ;
  • Park, Mee Hyun (Department of Radiology, Hallym University College of Medicine, Kangnam Sacred Heart Hospital) ;
  • Ha, Hong Il (Department of Radiology, Hallym University College of Medicine, Hallym University Sacred Heart Hospital) ;
  • Yang, Ik (Department of Radiology, Hallym University College of Medicine, Kangnam Sacred Heart Hospital) ;
  • Lee, Yul (Department of Radiology, Hallym University College of Medicine, Kangnam Sacred Heart Hospital) ;
  • Jung, Ah Young (Department of Radiology, Hallym University College of Medicine, Kangnam Sacred Heart Hospital) ;
  • Hwang, Ji-Young (Department of Radiology, Hallym University College of Medicine, Kangnam Sacred Heart Hospital)
  • Received : 2012.12.02
  • Accepted : 2013.03.27
  • Published : 2013.07.01
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Abstract

Objective: Though a number of CT findings of bowel and mesenteric injuries in blunt abdominal trauma are described in literature, no studies on the specific CT signs of a transected bowel have been published. In the present study we describe the incidence and new CT signs of bowel transection in blunt abdominal trauma. Materials and Methods: We investigated the incidence of bowel transection in 513 patients admitted for blunt abdominal trauma who underwent multidetector CT (MDCT). The MDCT findings of 8 patients with a surgically proven complete bowel transection were assessed retrospectively. We report novel CT signs that are unique for transection, such as complete cutoff sign (transection of bowel loop), Janus sign (abnormal dual bowel wall enhancement, both increased and decreased), and fecal spillage. Results: The incidence of bowel transection in blunt abdominal trauma was 1.56%. In eight cases of bowel transection, percentage of CT signs unique for bowel transection were as follows: complete cutoff in 8 (100%), Janus sign in 6 (100%, excluding duodenal injury), and fecal spillage in 2 (25%). The combination of complete cutoff and Janus sign were highly specific findings in patients with bowel transection. Conclusion: Complete cut off and Janus sign are the unique CT findings to help detect bowel transection in blunt abdominal trauma and recognition of these findings enables an accurate and prompt diagnosis for emergency laparotomy leading to reduced mortality and morbidity.

Keywords

References

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