NDLI: Comparison of 3D SPECT imaging with a rotating slat collimator and a parallel hole collimator

Content Provider	IEEE Xplore Digital Library
Author	Van Holen, Roel Vandenberghe, Stefaan Staelens, Steven Lemahieu, Ignace
Copyright Year	2008
Description	Author affiliation: MEDISIP, Department of Electronics and Information Systems, Ghent University, B-9000 Belgium (Van Holen, Roel; Vandenberghe, Stefaan; Staelens, Steven; Lemahieu, Ignace)
Abstract	Besides parallel and converging hole collimators which are frequently used in nuclear medicine, slat collimators can be used for Single Photon Emission Computed Tomography (SPECT). The higher photon collection efficiency, inherent to the geometry of rotating slat collimators results in much lower noise in the data. However, reconstruction of the plane integral data measured by a slat collimator is much more sensitive to noise accumulation compared to traditional SPECT reconstruction from line integrals. It is not a straightforward question whether the initial gain in efficiency will compensate for the larger noise accumulation during reconstruction. Therefore, a comparison of the performance of parallel hole and rotating slat collimation is needed. This study compares SPECT with rotating slat and parallel hole collimation in combination with MLEM reconstruction with accurate system modeling and correction for scatter and attenuation. A contrast-to-noise study revealed an improvement of a factor 3 to 4 for hot lesions and more than a factor of 4 for cold lesion. Rotating slat collimators are thus a valuable alternative for parallel hole collimators.
Starting Page	4592
Ending Page	4597
File Size	5474802
Page Count	6
File Format	PDF
ISBN	9781424427147
ISSN	10957863
DOI	10.1109/NSSMIC.2008.4774366
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-10-19
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Image reconstruction Optical collimators Single photon emission computed tomography Lesions Nuclear medicine Geometry Noise measurement Modeling Electromagnetic scattering Particle scattering rotating slat SPECT
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