Arrival-time analysis of intravenous digital aortograms in aortic dissection. Issue 2 (February 1988)

• Record Type: Journal Article
• Authors: Lyons, J; Gershlick, A; Gardener, J; Layton, C
• Is Part Of: Heart. Volume 59:Issue 2(1988)
• Page Start: 239
• Page End: 243
• Publication Date: 1988-02
• Subjects: Heart -- Diseases -- Treatment -- Periodicals; Cardiology -- Periodicals; 616.12
• DOI: 10.1136/hrt.59.2.239
• Languages: English
• ISSNs: 1355-6037

Abstract

Abstract : Arrival-time analysis was applied to intravenous digital aortograms. A single static image was produced by representing the time to 90% maximum density for each image pixel on a grey scale. Arrival-time analysis confirmed the diagnosis in four of six patients with aortic dissection that had been shown by image subtraction. In a further three patients with no dissection the arrival-time images were normal. In two patients with surgical repair of the ascending aorta, residual false lumens were shown by both subtraction and arrival-time analysis. In one of these cases arrival-time analysis prompted reanalysis of the subtraction image that had previously been interpreted as showing a normal aorta. Arrival-time analysis provides a static image of aortic dissection, which helps to overcome subtraction artefact.