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M. Margaret Knudson, MD; Frank R. Lewis, MD; Keith Atkinson, RVT; Ann Neuhaus

Arch Surg. 1993;128(9):1033-1038.

Abstract
Objective
To investigate the role of color-flow duplex ultrasound vascular imaging in screening patients for potential arterial injuries following penetrating trauma of the extremities.

Design
In this prospective study, patients with penetrating trauma in proximity to major peripheral vessels but without signs of arterial injury underwent color-flow duplex imaging. Patients with abnormal color-flow duplex examination results were then studied with angiography, and the results of the two studies were compared. In patients who presented with signs of arterial injury, immediate operative exploration and/or angiography was performed.

Setting
An urban trauma center.

Patients
Patients entering the trauma center with penetrating trauma between April 1991 and December 1992.

Results
Seventy-seven patients with 86 extremity injuries were initially screened with color-flow duplex imaging. Four patients had positive study results, and all injuries were confirmed with angiography (100% true positive). No missed arterial injuries were detected in clinical follow-up.

Conclusions
Color-flow duplex imaging reliably detects occult arterial injuries and may also have a role in following up minor injuries treated without surgery.

(Arch Surg. 1993;128:1033-1038)

Author Affiliations
From the University of California, San Francisco, and the San Francisco General Hospital (Dr Knudson, Mr Atkinson, and Ms Neuhaus); and the Henry Ford Hospital, Detroit, Mich (Dr Lewis).

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