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The British Journal of Radiology, Vol 69, Issue 826 900-905, Copyright © 1996 by British Institute of Radiology
ARTICLES |
JH Small, AK Dixon, RA Coulden, CD Flower and BA Housden
Department of Radiology, Addenbrooke's Hospital NHS Trust, UK.
Results were evaluated in 81 patients with suspected acute aortic dissection who were examined on a fast CT system capable of a 1 s data acquisition time. 17 patients had Type A and nine had Type B dissections. Radiological assessment provided 78 confident reports and expressed some uncertainty about the diagnosis in three patients. Overall sensitivity for aortic dissection was 96.2% and specificity was 96.4%. When 78 confident reports alone were considered, both sensitivity and specificity reached 100%. Reconstruction of data at 100 ms intervals allowed discrimination between artefacts in the ascending aorta and Type A dissections. CT can often be used as the single investigation prior to surgery for acute Type A dissections.
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