simiart - tpcclib 0.8.0 © 2023 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
such as abdominal aorta. Spill-over and spill-in effects can be simulated
by Gaussian 2D smoothing, or by using method based on Germano et al
JNM 1992; 33: 613-620, which 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
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.
-gaussian | -bar | -nopve
Select the spill-over and spill-in simulation method; by default
no PVE simulation.
-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