Share Email Print

Proceedings Paper

A novel atlas-based approach for MRI prostate segmentation using multiscale points of interest
Author(s): Charlens Álvarez; Fabio Martínez; Eduardo Romero
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

Accurate segmentation of the prostate and organs at risk is the fundamental guide for planning any radiotherapy. Such task is currently performed using a manual delineation of the organ on the MRI, a highly time consuming responsibility which in addition introduces inter and intra expert variability. Automatic MRI segmentation is a very challenging goal because of the large organ variability and the proximity of the neighboring organs. This work presents an automatic atlas-based segmentation strategy that selects the most probable template from a database using a robust multiscale similarity analysis. Once that probable template is selected, the associated segmentation is non-rigidly registered to the new MRI. The proposed method takes advantage of both the interindividual shape variation and intra-individual salient point representation. Results show that the method produces reliable segmentations, obtaining an average Dice Coefficient of 72% when comparing with the expert manual segmentation under a leave-one-out scheme with the training database.

Paper Details

Date Published: 19 November 2013
PDF: 6 pages
Proc. SPIE 8922, IX International Seminar on Medical Information Processing and Analysis, 89220O (19 November 2013); doi: 10.1117/12.2035462
Show Author Affiliations
Charlens Álvarez, Univ. Nacional de Colombia (Colombia)
Fabio Martínez, Univ. Nacional de Colombia (Colombia)
Eduardo Romero, Univ. Nacional de Colombia (Colombia)

Published in SPIE Proceedings Vol. 8922:
IX International Seminar on Medical Information Processing and Analysis
Jorge Brieva; Boris Escalante-Ramírez, Editor(s)

© SPIE. Terms of Use
Back to Top
Sign in to read the full article
Create a free SPIE account to get access to
premium articles and original research
Forgot your username?