NDLI: Development of a LSO based quality check procedure for the microPET/spl reg/ animal scanner

Content Provider	IEEE Xplore Digital Library
Author	Knoess, C. Siegel, S. Newport, D. Goble, R.N. Wienhard, K. Heiss, W.-D.
Copyright Year	2003
Description	Author affiliation: Max-Planck-Inst. for Neurological Res., Cologne, Germany (Knoess, C.)
Abstract	In Positron Emission Tomography (PET) hardware problem of the detector system could result in image degradation or image artifacts. Therefore a quality check (QC) procedure is needed to identify defective photomultipliers (PMTs) or electronic components while using the scanner in routine studies. For the microPET/spl reg/ animal scanner no built-in transmission source is available to perform quality scans with reproducible conditions. Therefore the use of the natural radioactive background of the scintillator material LSO was intuitive for the realization of a QC. A QC for the microPET/spl reg/ system was developed. Initial values of relative detector crystal sensitivities are measured in an initial measurement. Sensitivity values in subsequent measurements are compared to the initial values. A logfile is generated, which informs the user about changes in detector sensitivities. The quality check was implemented for a microPET/spl reg/ R4 scanner. Around 1.5 /spl times/ 10/sup 6/ single counts per detector block can be acquired in a 200-800 keV energy window during a 1800 s scan. Differences in crystal sensitivities yield information about drop outs of PMTs or electronic components. Therefore hardware problems can be easily detected without the use of an additional phantom or line source. In addition, the validity of the detector setup and normalization can be tested. This will avoid image artifacts and resolution degradation.
Starting Page	1053
Ending Page	1055
File Size	721661
Page Count	3
File Format	PDF
ISBN	0780376366
DOI	10.1109/NSSMIC.2002.1239503
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-11-10
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Animals Detectors Positron emission tomography Hardware Degradation Electronic components Photomultipliers Crystalline materials Radioactive materials Imaging phantoms
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

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