Title :
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
fDate :
31 Oct-6 Nov 1993
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;
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
DOI :
10.1109/NSSMIC.1993.373564
