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BioMed Research International
Volume 2014, Article ID 413916, 5 pages
http://dx.doi.org/10.1155/2014/413916
Clinical Study

Computed Tomography Angiography for Detection of Middle Meningeal Artery Lesions Associated with Acute Epidural Hematomas

1Division of Neurological Surgery, University of Sao Paulo Medical School, 255 Eneas Aguiar Street, Office 4080, 05403010 Sao Paulo, SP, Brazil
2Institute of Radiology, University of Sao Paulo Medical School, 470 Alves Guimaraes Street, 05410-000 Sao Paulo, SP, Brazil

Received 25 November 2013; Accepted 11 February 2014; Published 13 March 2014

Academic Editor: David Maintz

Copyright © 2014 Wellingson Silva Paiva et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Background. The natural history of traumatic aneurysms of the middle meningeal artery (MMA) is not well known, but patients with these lesions are more likely to have delayed bleeds. In this paper, we described a series of patients with epidural hematoma who underwent angiotomography (CTA) for MMA vascular lesion diagnosis. Methods. Eleven patients admitted to our emergency unit with small acute epidural hematoma were prospectively studied. All patients with temporal acute epidural hematomas underwent CTA and cerebral angiogram at our institution for diagnosis of posttraumatic lesions of middle meningeal artery. The findings of angiotomography and digital angiography were reviewed by radiologist and angiographers, respectively, to ensure that the lesions were readily diagnosed without knowing the results of angiotomography and to compare CTA findings with standard angiogram. Results. The causes of head injury were traffic accidents, falls, and aggression. Three of these patients presented traumatic MMA pseudoaneurysm. CT angiography was able to diagnose all of them, with dimensions ranging from 1.5 to 2.8 mm. Conventional angiography confirmed the findings of CT angiography, and the lesions presented with similar dimensions at both methods. Conclusions. We believe that angiotomography can be a useful technique for diagnosis of vascular lesion associated with small epidural hematoma.