SciELO - Scientific Electronic Library Online

 
vol.18 issue1In vivo determination of renal stone composition with dual-energy computed tomographyAn audit of elective outpatient magnetic resonance imaging in a tertiary South African public-sector hospital author indexsubject indexarticles search
Home Pagealphabetic serial listing  

SA Journal of Radiology

On-line version ISSN 1027-202X

Abstract

SCHOLTZ, Paul; BENINGFIELD, Steve  and  CANDY, Sally. A retrospective study of computed tomography angiography versus digital subtraction angiography in penetrating neck trauma at Groote Schuur Hospital, South Africa. S. Afr. J. radiol. (Online) [online]. 2014, vol.18, n.1, pp. 1-7. ISSN 1027-202X.  http://dx.doi.org/10.4102/sajr.v18i1.601.

BACKGROUND: Penetrating neck trauma is commonly encountered in South African trauma units, and is associated with high mortality and morbidity rates. The imaging protocol for stable patients with penetrating neck trauma remains controversial. There is only sparse data validating the use of computed tomography angiography (CTA) in the evaluation of penetrating neck trauma in South Africa. OBJECTIVES: To assess the sensitivity and specificity of CTA versus digital subtraction angiography (DSA) in detecting arterial injury and secondarily evaluate the ability of CT to assess non-arterial injury. METHOD: Using hospital and radiology databases, 23 patients were identified who had undergone both CTA and DSA for penetrating neck trauma. The data was retrospectively anonymised and randomised. A radiologist experienced in the interpretation of both trauma CTA and DSA re-reported all the imaging and the findings were compared and analysed. RESULTS: Twenty-four arterial injuries were detected. The sensitivity of CTA for detecting arterial injury was 78% and the specificity 83%. The ability of CTA to delineate wound track and detect non-arterial visceral injury was also confirmed. CONCLUSION: CTA is an attractive initial diagnostic investigation that, along with clinical evaluation, effectively guides further investigation and intervention. It is important for the radiologist to understand the limitations of CTA and have a low threshold for DSA in equivocal cases.

        · text in English     · English ( pdf )

 

Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License