simiart 0.2.2 © 2012 by Turku PET Centre
Simulate dynamic PET image plane with background activity surrounding
a circular object that is assumed to be extending across image planes
(bar or vessel) with spill-over and spill-in effects.
The defalt method is based on Germano et al. JNM 1992; 33: 613-620.
This method is only valid for vessels with very large diameter.
To simulate the circular vessel correctly in 2D image matrix use
the equations in Brix et al. Nuklearmedizin 2002;41:184-190 instead;
however, that would require numerical solution to double integrals
Alternative method applies Gaussian 2D smoothing.
Usage: simiart [Options] <Blood TAC file> <Bkg TAC file> <Image file>
Options:
-dim=<Image x and y dimension in pixels>
Set image dimension; by default 128
-pxlsize=<Voxel size (mm)>
Set image voxel size; by default 1 mm
-diameter=<Vessel diameter (mm)>
Set vessel diameter; by default 25 mm; vessel border is simulated
by simple cutoff, thus diameter should be several pixels -fwhm=<FWHM (mm)>
Set image resolution; by default 8 mm
-xpos=<vessel position (mm)>
Set vessel distance from centre of image; by default 0 mm;
negative distance moves vessel to the left, positive to the right
-ypos=<vessel position (mm)>
Set vessel distance from centre of image; by default 0 mm
negative distance moves vessel upwards, positive downwards
-bar | -gaussian
Select the spill-over and spill-in simulation method (bar by default)
-h or --help
Print this message and exit.
--version or --build
Print software build information and exit.
--silent
Program works silently, printing only error and warning messages.
--verbose
Program prints more information about what it is doing.
Example #1:
simiart blood.dat background.dft vessel.v
Example #2:
simiart -fwhm=4.3 blood.dat background.dft vessel.v
See also:
fvar4sim,
imgfiltg,
ecatadd,
ecatcalc,
simcirc,
flo2ecat
Keywords: simulation, image, software testing, vessel, input
This program comes with ABSOLUTELY NO WARRANTY. This is free software, and
you are welcome to redistribute it under GNU General Public License.