Partial Voluming
The partial volume effect (when a pixel represents more than one kind
of tissue type) blurs the intensity distinction between tissue classes
at the border of the two tissues. - e.g. ventricle, always shows grey
in between white and CSF, but in some locations there is
grey matter there. Boundaries at the separation of the left and right
cerebral hemispheres, cerebrum with cerebellum, and the bottom of the
cerebellum are difficult to locate because on either side of these
boundaries there is tissue with similar grey scale values and these
tissues are pressed together. Example: upper left of 1_24_29 show
histo of this region (+3D pictures) against histo of all of the
cortical grey matter. pv.tiff, pv.cor.tiff, pv.sag.tiff, pv.axi.tiff
show where it is pv.histo give the smoothed histogram.
A fairly common example of the partial volume effect.
Related Web pages:
Probabilistic segmentation of partial volume voxels
Koen L. Vincken, AndrÚ S.E. Koster and Max A. Viergever
Computer Vision Research Group, Utrecht University, AZU E 02.222,
Heidelberglaan 100, 3584 CX Utrecht, The Netherlands;
e-mail: koen@cv.ruu.nl
the influence of phase and partial volume effects on the
accuracy of MR mammography.
M.K. Stehling, M. Peller, H. Sittek, M.F. Reiser
Excerpt from VISION-LIST Digest
Tue Jul 25 15:14:41 PDT 95 Volume 14 : Issue 28
A novel method
for volume determination using MR image sequencesA novel method
for volume determination using MR image sequences. Joe P. Windham, Allan M.
Haggar, David O. Hearshen, Joseph R. Roebuck, and David A. Reimann. In Book
of...
http://www.cs.wayne.edu/~dar/abstracts/Windham1988b - size 5K - 3 Aug 95
MR volume
determination utilizing eigenimage filteringMR volume
determination utilizing eigenimage filtering. Joe P. Windham, David O. Hearshen,
Joseph R. Roebuck, David A. Reimann, and Allan M. Haggar. Radiological
Society...
http://www.cs.wayne.edu/~dar/abstracts/Windham1988c - size 1K - 3 Aug 95
The following references can be found
here:
1
B. Johnston, M.S. Atkins, and K.S. Booth.
Partial volume segmentation in 3D of lesions and tissues in
magnetic resonance images.
In Proceedings of the SPIE-Medical Imaging 1994, volume 2167,
pages 28-39, Bellingham, WA, 1994. SPIE-The International Society for
Optical Engineering.
2
B. Johnston, M.S. Atkins, and K.S. Booth.
Three-dimensional partial volume brain tissue segmentation of
multispectral magnetic resonance images using stochastic relaxation.
In E.R. Dougherty, editor, Non-Linear Image Processing VI,
volume 2180, pages 268-279, Bellingham, WA, 1994. SPIE-The International
Society for Optical Engineering.
The following references are from the
Proceedings of the 2nd International Meeting on Quantification of Brain Function,
July 7-9, 1995, Oxford, England.
Editors: R.Myers, V.J.Cunningham, D.L. Bailey and T. Jones
Academic Press Inc., San Diego, CA
The complete contents are
here.
MR-based Correction of Partial Volume Effects in Brain PET Imaging.
Frost, J.J., Meltzer, C.C., Zubieta, J.K., Links, J.M., Brakeman, P., Stumpf, M.J. and Kruger, M.
In Vivo-Correction for Partial Volume Effects in Positron Emission Tomography: Accuracy and Precision.
Rousset, O.G., Ma, Y., Marenco, S., Wong, D.F. and Evans, A.C.
Dissolution of Partial Volume Effect in PET by an Inversion Technique with the MR-embedded Neural Network Model.
Kosugi, Y., Sase, M., Suganami, Y., Momose, T. and Nishikawa, J.
Bayesian Mixture
Classification of MRI Data for Geometric Modeling and
VisualizationBayesian Mixture Classification of MRI Data for
Geometric Modeling and Visualization. David H. Laidlaw*, Kurt W. Fleischer , Alan
H. Barr. California Institute of...
http://www.gg.caltech.edu/~dhl/aussois/paper.html - size 9K - 2 Nov 95
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