NDLI: Investigation on deadtime characteristics for simultaneous emission-transmission data acquisition in PET

Content Provider	IEEE Xplore Digital Library
Author	Yuan-Chuan Tai Chatziioannou, A. Dahlbom, M. Hoffman, E.J.
Copyright Year	1998
Description	Author affiliation: Div. of Nucl. Med. & Biophys., California Univ., Los Angeles, CA, USA (Yuan-Chuan Tai)
Abstract	Modern PET systems utilize rotating rod sources and sinogram windowing for transmission scan and are capable of simultaneous emission-transmission data acquisition. Count rate capability of a PET system using EGO is mainly limited by deadtime of block detectors. Deadtime of a EGO block detector is directly associated with the rate of single events. In a simultaneous acquisition, moving rod sources generate a spatially varying singles distribution which rotates synchronously with rod motions. Emission activities create a nearly uniform singles distribution which is static or varies slowly depending on the half life of radioisotope. System deadtime is characterized for different sources of activity in a simultaneous acquisition. Typically, there are 60 to 150 MBq Ge-68 in each of the three rods causing 26% peak-to-peak variation in the instant detector deadtime. Time-averaged deadtime in transmission sinogram has a variation of 30% peak-to-peak. Rod activities create a 4 to 10% peak-to-peak variation in the time-averaged deadtime in emission sinogram of a simultaneous scan. The current deadtime correction method results a 10% error in simultaneously acquired emission sinogram with 60 MBq in each rod and 74 MBq in a uniform phantom. A spatially variant deadtime correction technique was developed. Error was reduced to 4% for the same study.
Starting Page	1489
Ending Page	1493
File Size	592604
Page Count	5
File Format	PDF
ISBN	0780342585
ISSN	10823654
DOI	10.1109/NSSMIC.1997.670601
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1997-11-09
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Data acquisition Positron emission tomography Whole-body PET Attenuation measurement Time measurement Image reconstruction Solid scintillation detectors Nuclear medicine Biophysics Event detection
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

Investigation of deadtime characteristics for simultaneous emission-transmission data acquisition in PET

Performance of a high sensitivity PET scanner based on LSO panel detectors

Whole body PET based on an RPC system

Performance of a high sensitivity PET scanner based on LSO panel detectors

Comparison of NEC and subjective image quality measures in 2D and 3D whole-body PET imaging

Simultaneous attenuation and scatter correction by restoration in PET imaging

Data correction and normalization for a new PET scanner having coarse septa

High Accuracy Multiple Order Scatter Model for 3D Whole Body PET

Performance characteristics of a dual head SPECT scanner with PET capability

Investigation on deadtime characteristics for simultaneous emission-transmission data acquisition in PET

Similar Documents

Investigation of deadtime characteristics for simultaneous emission-transmission data acquisition in PET

Performance of a high sensitivity PET scanner based on LSO panel detectors

Whole body PET based on an RPC system

Performance of a high sensitivity PET scanner based on LSO panel detectors

Comparison of NEC and subjective image quality measures in 2D and 3D whole-body PET imaging

Simultaneous attenuation and scatter correction by restoration in PET imaging

Data correction and normalization for a new PET scanner having coarse septa

High Accuracy Multiple Order Scatter Model for 3D Whole Body PET

Performance characteristics of a dual head SPECT scanner with PET capability

Investigation on deadtime characteristics for simultaneous emission-transmission data acquisition in PET