simiart - tpcclib 0.7.7 © 2021 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 default 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] bloodfile bkgfile image
 
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, --help
     Display usage information on standard output and exit.
 -v, --version
     Display version and compile information on standard output and exit.
 -d[n], --debug[=n], --verbose[=n]
     Set the level (n) of debugging messages and listings.
 -q, --quiet
     Suppress displaying normal results on standard output.
 -s, --silent
     Suppress displaying anything except errors.
 
Example 1:
  simiart blood.tac background.tac vessel.v
Example 2:
  simiart -fwhm=4.3 -diameter=7 -pxlsize=2.3 blood.tac background.tac vessel.v
 
See also: fvar4tac, imgfiltg, imgadd, imgcalc, simcirc, simimyoc, flat2img
 
Keywords: simulation, image, software testing, vessel, input