By Topic

Fusion of Ultrasound B-Mode and Vibro-Elastography Images for Automatic 3-D Segmentation of the Prostate

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

5 Author(s)
Mahdavi, S.S. ; Department of Electrical and Computer Engineering, University of British Columbia, Vancouver, Canada ; Moradi, M. ; Morris, W.J. ; Goldenberg, S.L.
more authors

Prostate segmentation in B-mode images is a challenging task even when done manually by experts. In this paper, we propose a 3-D automatic prostate segmentation algorithm which makes use of information from both ultrasound B-mode and vibro-elastography data. We exploit the high contrast-to-noise ratio of vibro-elastography images of the prostate, in addition to the commonly used B-mode images, to implement a 2-D active shape model (ASM)-based segmentation algorithm on the mid-gland image. The prostate model is deformed by a combination of two measures: the gray level similarity and the continuity of the prostate edge in both image types. The automatically obtained mid-gland contour is then used to initialize a 3-D segmentation algorithm which models the prostate as a tapered and warped ellipsoid. Vibro-elastography images are used in addition to ultrasound images to improve boundary detection. We report a Dice similarity coefficient of 0.87 \pm 0.07 and 0.87 \pm 0.08 comparing the 2-D automatic contours with manual contours of two observers on 61 images. For 11 cases, a whole gland volume error of 10.2 \pm 2.2% and 13.5 \pm 4.1% and whole gland volume difference of -7.2\pm 9.1% and -13.3\pm 12.6% between 3-D automatic and manual surfaces of two observers is obtained. This is the first validated work showing the fusion of B-mode and vibro-elastography data for automatic 3-D segmentation of the prostate.

Published in:

Medical Imaging, IEEE Transactions on  (Volume:31 ,  Issue: 11 )