Diagnostic performance of helical CT angiography in trauma to large arteries of the extremities

Jorge A. Soto, Felipe Munera, Neftalí Cardoso, Olga Guarín, Santiago Medina

Research output: Contribution to journalArticle

78 Citations (Scopus)

Abstract

Purpose: The purpose of this work was to assess the performance of helical CT angiography (CTA) in the diagnosis of injuries to large arteries of the extremities. Method: We performed helical CTA on 45 consecutive patients referred for conventional angiography for evaluation of suspected arterial injuries after sustaining trauma to the extremities (13 upper, 32 lower). Two radiologists interpreted the helical CTA studies independently. Diagnostic performance parameters evaluated included sensitivity, specificity, receiver operating characteristic (ROC) curves, and interobserver agreement (κ statistics). Conventional angiography was used as the standard of reference for determination of final diagnoses. Results: Forty-three of 45 patients (96%) had diagnostic helical CTA examinations. Final diagnoses in these 43 patients were arterial occlusion (n = 7), partial obstruction (n = 3), pseudoaneurysm (n = 5), arteriovenous fistula (n = 1), pseudoaneurysm and arteriovenous fistula (n = 3), and normal findings (n = 24). Sensitivity and specificity were 90% [95% confidence interval (CI), 80- 99] and 100% (95% CI, 99-100), respectively, for Reader 1 and 100% (95% CI, 99-100) and 100% (95% CI, 99-100), respectively, for Reader 2. ROC curve analysis revealed high diagnostic performance, with areas under the curve of >0.9 for both readers. Interobserver agreement was 0.9. Conclusion: The diagnostic performance of helical CTA for detection of major injuries of large arteries of the extremities is high.

Original languageEnglish
Pages (from-to)188-196
Number of pages9
JournalJournal of Computer Assisted Tomography
Volume23
Issue number2
DOIs
StatePublished - Mar 1 1999
Externally publishedYes

Fingerprint

Spiral Computed Tomography
Extremities
Arteries
Confidence Intervals
Wounds and Injuries
False Aneurysm
Arteriovenous Fistula
ROC Curve
Angiography
Sensitivity and Specificity
Upper Extremity
Area Under Curve
Computed Tomography Angiography

Keywords

  • Arteries, aneurysm
  • Arteries, obstruction
  • Arteries, wounds and injuries
  • Computed tomographic angiography (CTA)
  • Extremities, wounds and injuries

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Radiological and Ultrasound Technology

Cite this

Diagnostic performance of helical CT angiography in trauma to large arteries of the extremities. / Soto, Jorge A.; Munera, Felipe; Cardoso, Neftalí; Guarín, Olga; Medina, Santiago.

In: Journal of Computer Assisted Tomography, Vol. 23, No. 2, 01.03.1999, p. 188-196.

Research output: Contribution to journalArticle

Soto, Jorge A. ; Munera, Felipe ; Cardoso, Neftalí ; Guarín, Olga ; Medina, Santiago. / Diagnostic performance of helical CT angiography in trauma to large arteries of the extremities. In: Journal of Computer Assisted Tomography. 1999 ; Vol. 23, No. 2. pp. 188-196.
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