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Proceedings Paper

Perceptual enhancement of arteriovenous malformation in MRI angiography displays
Author(s): Kamyar Abhari; John S. H. Baxter; Roy Eagleson; Terry Peters; Sandrine de Ribaupierre
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Paper Abstract

The importance of presenting medical images in an intuitive and usable manner during a procedure is essential. However, most medical visualization interfaces, particularly those designed for minimally-invasive surgery, suffer from a number of issues as a consequence of disregarding the human perceptual, cognitive, and motor system's limitations. This matter is even more prominent when human visual system is overlooked during the design cycle. One example is the visualization of the neuro-vascular structures in MR angiography (MRA) images. This study investigates perceptual performance in the usability of a display to visualize blood vessels in MRA volumes using a contour enhancement technique. Our results show that when contours are enhanced, our participants, in general, can perform faster with higher level of accuracy when judging the connectivity of different vessels. One clinical outcome of such perceptual enhancement is improvement of spatial reasoning needed for planning complex neuro-vascular operations such as treating Arteriovenous Malformations (AVMs). The success of an AVM intervention greatly depends on fully understanding the anatomy of vascular structures. However, poor visualization of pre-operative MRA images makes the planning of such a treatment quite challenging.

Paper Details

Date Published: 22 February 2012
PDF: 8 pages
Proc. SPIE 8318, Medical Imaging 2012: Image Perception, Observer Performance, and Technology Assessment, 831809 (22 February 2012); doi: 10.1117/12.911687
Show Author Affiliations
Kamyar Abhari, Robarts Research Institute (Canada)
The Univ. of Western Ontario (Canada)
John S. H. Baxter, Robarts Research Institute (Canada)
Roy Eagleson, Robarts Research Institute (Canada)
The Univ. of Western Ontario (Canada)
Terry Peters, Robarts Research Institute (Canada)
The Univ. of Western Ontario (Canada)
Sandrine de Ribaupierre, The Univ. of Western Ontario (Canada)


Published in SPIE Proceedings Vol. 8318:
Medical Imaging 2012: Image Perception, Observer Performance, and Technology Assessment
Craig K. Abbey; Claudia R. Mello-Thoms, Editor(s)

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