IMAGING CHARACTERISTIC AND VALUE OF COMPUTED TOMOGRAPHY IN THE DIAGNOSIS OF ARTERIAL INJURIES IN BLUNT ABDOMINOPELVIC TRAUMA

Đào Văn Lý1, Nguyễn Duy Hùng1,2,
1 Hanoi Medical University
2 Vietnam-Germany Friendship Hospital

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Abstract

Objective: Evaluation of imaging characteristics and value of computed tomography in the diagnosis of arterial injury in patients with abdominopelvic trauma compared to digital subtraction angiography (DSA). Methods: A retrospective study was performed on 94 patients, who were hospitalized by abdominopelvic trauma and diagnosed arterial injuries on computed tomography (CT) scan including active extravasation (AE), pseudoaneurysm (PA), arteriovenous fistula (AVF). DSA was subsequently utilized at Viet Duc University Hospital, Hanoi, Vietnam, from 6/2020 to 11/2021. The findings on CT images were described and the value of this modality was analyzed compared with those on DSA. Result: 108 arterial lesions were observed on CT, including (59 AE, 44 PA, 5 AVF). There was no significant difference in the size of AE and PA when compared between the positive group and the negative group on DSA (p > 0.05). The sensitivity and accuracy of CT scans to diagnose arterial injury were 93.3%, 90.7% for portal venous phase, 97.1%, 93.5% for arterial phase, respectively and 100%, 96.3% with the dual-phase combining of arterial and portal venous phases. Conclusions:Our study shows that CT scan has high sensitivityand accuracy for diagnosing arterial injury in abdominopelvic trauma. The dual-phase with the combination of arterial and portal venous phases provides optimal overall performance.

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References

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