Monte Carlo simulation of transmission studies using planar source with parallel collimators and line source with fan-beam collimators

Author

Ljungberg, Michael ; Strand, Sven-Erik ; Rajeevan, N. ; King, Michael A.

Author_Institution

Dept. of Radiat. Phys., Lund Univ., Sweden

fYear

1993

fDate

31 Oct-6 Nov 1993

Firstpage

1620

Abstract

A knowledge of the distribution of the attenuation coefficient is generally required for a successful correction of attenuation in nonhomogeneous regions. This can be accomplished by transmission measurement with either parallel or fan-bean collimation. Monte Carlo simulation makes it possible to fully evaluate the results from such a correction. This study shows results from such simulations for both parallel and fan-beam transmission imaging. Also, examples of the effect of down-scatter from an emission ^99mTc radionuclide into the energy window for a transmission ¹⁵³Gd radionuclide are shown

Keywords

Monte Carlo methods; single photon emission computed tomography; Gd; Monte Carlo simulation; Tc; attenuation coefficient distribution; diagnostic nuclear medicine; down-scatter; emission ^99mTc radionuclide; fan-beam collimators; line source; parallel collimators; planar source; transmission ¹⁵³Gd radionuclide; transmission studies; Attenuation; Cameras; Cancer; Collimators; Electromagnetic scattering; Head; Imaging phantoms; Monte Carlo methods; Particle scattering; Single photon emission computed tomography;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium and Medical Imaging Conference, 1993., 1993 IEEE Conference Record.

Conference_Location

San Francisco, CA

Print_ISBN

0-7803-1487-5

Type

conf

DOI

10.1109/NSSMIC.1993.373564

Filename

373564