eprintid: 2766
rev_number: 9
eprint_status: archive
userid: 69
dir: disk0/00/00/27/66
datestamp: 2015-10-09 10:30:59
lastmod: 2015-10-09 11:10:32
status_changed: 2015-10-09 10:30:59
type: conference_item
metadata_visibility: show
creators_name: Mukhopadhyay, Anirban
creators_name: Bevilacqua, Marco
creators_name: Oksuz, Ilkay
creators_name: Dharmakumar, Rohan
creators_name: Tsaftaris, Sotirios A.
creators_id: 
creators_id: 
creators_id: ilkay.oksuz@imtlucca.it
creators_id: 
creators_id: 
title: Data Driven Feature Learning for Representation of Myocardial BOLD MR Images
ispublished: unpub
subjects: QA75
subjects: RC
divisions: CSA
full_text_status: none
pres_type: paper
abstract: Cardiac phase-dependent variations of myocardial signal intensities in Cardiac Phase-resolved Blood-Oxygen-Level-Dependent (CP-BOLD) MRI can be exploited for the identification of ischemic territories. This technique requires segmentation to isolate the myocardium. However, spatio-temporal variations of BOLD contrast, prove challenging for existing automated myocardial segmentation techniques, because they were developed for acquisitions where contrast variations in the myocardium are minimal. Appropriate feature learning mechanisms are necessary to best represent appearance and texture in CP-BOLD data. Here we propose and validate a feature learning technique based on multiscale dictionary model that learns to sparsely represent effective patterns under healthy and ischemic conditions.
date: 2015-06-04
event_title: ISMRM 23st Annual Meeting
event_location: Toronto, Ontario, Canada
event_dates: 30 May - 5 Jun 2015
event_type: conference
refereed: FALSE
official_url: http://ismrm.org/15/program_files/ThuEPS01.htm#Vessel_Wall_&_Cardiovascular_Image_Processing
citation:   Mukhopadhyay, Anirban and Bevilacqua, Marco and Oksuz, Ilkay and Dharmakumar, Rohan and Tsaftaris, Sotirios A.  Data Driven Feature Learning for Representation of Myocardial BOLD MR Images.  In: ISMRM 23st Annual Meeting, 30 May - 5 Jun 2015, Toronto, Ontario, Canada       (Unpublished)   (2015)