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Proceedings Paper

Evaluation of MR scanning, image registration, and image processing methods to visualize cortical veins for neurosurgery
Author(s): Herke Jan Noordmans; G. J. M. Rutten; Peter W. A. Willems; Max A. Viergever
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Paper Abstract

The visualization of brain vessels on the cortex helps the neurosurgeon in two ways: to avoid blood vessels when specifying the trepanation entry, and to overcome errors in the surgical navigation system due to brain shift. We compared 3D T1, MR, 3D T1 MR with gadolinium contrast, MR venography as scanning techniques, mutual information as registration technique, and thresholding and multi-vessel enhancement as image processing techniques. We evaluated the volume rendered results based on their quality and correspondence with photos took during surgery. It appears that with 3D T1 MR scans, gadolinium is required to show cortical veins. The visibility of small cortical veins is strongly enhanced by subtracting a 3D T1 MR baseline scan, which should be registered to the scan with gadolinium contrast, even when the scans are made during the same session. Multi-vessel enhancement helps to clarify the view on small vessels by reducing noise level, but strikingly does not reveal more. MR venography does show intracerebral veins with high detail, but is, as is, unsuited to show cortical veins due to the low contrast with CSF.

Paper Details

Date Published: 18 April 2000
PDF: 8 pages
Proc. SPIE 3976, Medical Imaging 2000: Image Display and Visualization, (18 April 2000); doi: 10.1117/12.383090
Show Author Affiliations
Herke Jan Noordmans, Univ. Medical Ctr. (Netherlands)
G. J. M. Rutten, Univ. Medical Ctr. (Netherlands)
Peter W. A. Willems, Univ. Medical Ctr. (Netherlands)
Max A. Viergever, Univ. Medical Ctr. (Netherlands)

Published in SPIE Proceedings Vol. 3976:
Medical Imaging 2000: Image Display and Visualization
Seong Ki Mun, Editor(s)

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