NDLI: Undersampled free breathing cardiac perfusion MRI reconstruction without motion estimation

Content Provider	IEEE Xplore Digital Library
Author	Adluru, G. Liyong Chen DiBella, E.V.R.
Copyright Year	2011
Description	Author affiliation: UCAIR, Department of Radiology, University of Utah, USA (Adluru, G.; Liyong Chen; DiBella, E.V.R.)
Abstract	One of the key MRI methodologies to identify and characterize coronary artery disease is dynamic contrast enhanced myocardial perfusion imaging. Rapid acquisition of images can help in improved diagnosis by accurately measuring temporal dynamics of the injected contrast agent. Another competing requirement is complete coverage of the heart with high spatial resolution to better identify sub-endocardial infarcts and to reduce dark rim artifacts. Most undersampled reconstruction methods that break this spatio-temporal tradeoff are sensitive to inter-frame respiratory motion in dynamic images. Here we extend a Non-local means based reconstruction to obtain high quality images from undersampled data that has motion. The framework does not rely on estimating motion prior to reconstruction. The method is able to resolve ghosting artifacts from Cartesian undersampling and streaking artifacts due to radial undersampling better than existing methods. The method has potential to improve cardiac perfusion imaging for better diagnosis.
Starting Page	97
Ending Page	100
File Size	936500
Page Count	4
File Format	PDF
ISBN	9781424441273
ISSN	19457928
DOI	10.1109/ISBI.2011.5872363
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-03-30
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Image reconstruction TV Myocardium Magnetic resonance imaging Pixel Acceleration Non-local means Myocardial perfusion inter-frame motion undersampling
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in