Published October 1990 | Version v1
Report Open

An object shape dependent scatter correction for PET

Creators

  • 1. TRIUMF, Vancouver, BC (Canada)
  • 2. Deutsches Krebsforschungszentrum, Heidelberg (Germany). Inst. fuer Radiologie und Pathophysiologie

Description

The increased scatter fraction seen in positron volume imaging when compared with conventional slice positron emission tomography has created a need for better characterization and correction of scattered gamma rays for positron imaging. An analytical simulation of single scattered gamma rays and an extension to estimate multiple scattered rays have been verified using a Monte Carlo simulation. The simulation was first verified using measured tomograph data. The analytical simulation has been used to study some cases of interest for scatter correction. A scatter correction method which uses the analytical simulation has been proposed. (Author) (13 refs., 6 figs.)

Availability note (English)

MF available from INIS under the Report Number.

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Additional details

Publishing Information

Imprint Pagination
8 p.
Report number
TRI-PP--90-77

Conference

Title
1990 Nuclear Science Symposium.
Dates
24-26 Oct 1990.
Place
Washington, DC (United States).

INIS

Country of Publication
Canada
Country of Input or Organization
Canada
INIS RN
24059290
Subject category
S62: RADIOLOGY AND NUCLEAR MEDICINE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
COMPTON EFFECT; COMPUTERIZED SIMULATION; CORRECTIONS; GAMMA RADIATION; MONTE CARLO METHOD; POSITRON COMPUTED TOMOGRAPHY; VOLUME
Descriptors DEC
BASIC INTERACTIONS; CALCULATION METHODS; COMPUTERIZED TOMOGRAPHY; ELASTIC SCATTERING; ELECTROMAGNETIC INTERACTIONS; ELECTROMAGNETIC RADIATION; EMISSION COMPUTED TOMOGRAPHY; INTERACTIONS; IONIZING RADIATIONS; RADIATIONS; SCATTERING; SIMULATION; TOMOGRAPHY