By Topic

Evaluation of a surface-to-volume registration method for prostate gland and its application to ultrasound image segmentation

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

7 Author(s)
Wei Shao ; Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore ; Ruoyun Wu ; Keck Voon Ling ; Choon Hua Thng
more authors

This paper evaluated a surface-to-volume registration method for its ability of intra-operatively locating the prostate gland under the ultrasound (US) guidance, with the aid of pre-delineated prostate surface from the high-contrast magnetic resonance imaging (MRI) images of the same patient. The rigidity assumption and the registration credibility cross the modalities were both examined. When no deformation occurs, the prostate shape delineated from MRI images is consistent with the high gradients around the prostate boundary in the US images. The registration problem is therefore solved by looking for the transformation that maximizes the average image gradients along the surface normal. Self-registration experiments verified that the average accuracy is within 1 mm in translation and 3° in rotation. Cross registration shows that the prostate deforms between the modalities but the registration method is still effective when the deformation is small. And the registration accuracy deteriorates with the amount of deformation. To precisely locate and outline the prostate, segmentation can be applied based on the initialization from registration.

Published in:

Biomedical Circuits and Systems, 2004 IEEE International Workshop on

Date of Conference:

1-3 Dec. 2004