Title
A dynamic region estimation method for cerebral perfusion CT
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
conferenceObject
Publication
Maastricht :Shaker publishing bv ,
Subject
Physics
Engineering sciences. Technology
Source (journal)
OPTICAL MEASUREMENT TECHNIQUES FOR STRUCTURES & SYSTEMS III
Source (book)
6th International Conference on Optical Measurement Techniques for, Structures and Systems III (OPTIMESS2015), APR 08-09, 2015, Univ Antwerp, Antwerp, BELGIUM
Volume/pages
(2016) , p. 331-342
ISBN - Hoofdstuk
978-90-423-0439-0
ISI
000373413300034
Carrier
E
Target language
English (eng)
Affiliation
University of Antwerp
Abstract
In cerebral perfusion computed tomography (PCT), multiple scans of the brain are acquired after an intravenous contrast bolus injection. Therefore, radiation dose is a major issue. Recently, methods have been proposed that can reconstruct high quality dynamic (i.e., 4D) images, while keeping the radiation dose limited. These methods typically require an accurate estimate of the dynamic region inside the brain volume, i.e., the region containing tissue/vessels. Conventionally, the dynamic region is indicated manually. In this work, a method for low-dose cerebral PCT is presented in which the dynamic region is estimated in an automatic way. Simulation results on two PCT phantoms show that the dynamic region can be accurately estimated, even in a very low-dose regime, which is an important step towards more powerfid reconstruction methods for low-dose cerebral PCT.
E-info
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000373413300034&DestLinkType=RelatedRecords&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000373413300034&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848
Handle