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Assessment of VIE image quality using helical CT angiography: in vitro phantom study

Biomedical Sciences Research Institute Computer Science Research Institute Environmental Sciences Research Institute Nanotechnology & Advanced Materials Research Institute

Sun, ZH, Winder, John, Kelly, BE, Ellis, PK, Kennedy, PT and Hirst, DG (2004) Assessment of VIE image quality using helical CT angiography: in vitro phantom study. COMPUTERIZED MEDICAL IMAGING AND GRAPHICS, 28 (1-2). pp. 3-12. [Journal article]

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DOI: 10.1016/j.compmedimag.2003.09.001

Abstract

The aim of this study is to quantify the effects of helical CT acquisitions parameters on the magnitude of three-dimensional stair-step artefacts, visualization of renal ostium and morphologies of suprarenal stents observed using virtual intravascular endoscopy. This was performed in a phantom of the human abdominal aorta with a stent graft in situ. Stair-step artefacts were quantified by measuring the standard deviation of signal intensity on surface shaded images and the influence of these artefacts on the visualization of arterial ostia and stent morphologies were assessed by three radiologists. The methodology may be used to optimise the CT system performance for helical CT angiography in aortic stent grafting. (C) 2003 Elsevier Ltd. All rights reserved.

Item Type:Journal article
Keywords:image quality; artefacts; stent; computed tomography; virtual endoscopy
Faculties and Schools:Faculty of Life and Health Sciences
Faculty of Life and Health Sciences > School of Health Sciences
Research Institutes and Groups:Institute of Nursing and Health Research > Centre for Health and Rehabilitation Technologies
ID Code:6456
Deposited By:Dr John Winder
Deposited On:27 Jan 2010 16:22
Last Modified:29 Feb 2012 15:34

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