ecatmrp - tpcclib 0.7.5 © 2020 by Turku PET Centre

Reconstruct PET image from attenuation and normalization corrected
2D PET sinogram using median root prior (MRP) [1,2,3].
This program does not correct image data for decay.
Image is corrected for the dead-time based on factors in the sinogram.
Image data is written in units ECAT counts per pixel per second.
 
Not for clinical use! Program is not thoroughly tested!
 
Usage: ecatmrp [Options] scnfile imgfile
 
Options:
 -zoom=<value>
     Set zoom factor; by default 1.0 (no zoom).
 -dim=<value>
     Set image x and y dimensions; by default 128.
 -rot[ation]=<value>
     Set image rotation in degrees, -180 - 180; by default 0 (no rotation).
 -x=<value>
     Set image shift in x direction (in cm); by default 0.
 -y=<value>
     Set image shift in y direction (in cm); by default 0.
 -perv
     Divide image voxel values by voxel volume (mL); by default the voxel
     volume is corrected later during image calibration.
 -beta=<value>
     Set beta value, usually 0.1 - 0.9; by default 0.3.
 -mask=<3|5>
     Set mask dimension for median filter, either 3 (3x3) or 5 (5x5 without
     corener pixels); by default 3.
 -iter=<value>
     Set maximum number of iterations; by default 150.
 -skip=<value>
     Set the number of iterations without prior; by default 1.
 -os=<1|2|4|8|16>
     Set the number of OS sets (acceleration); by default 1.
 -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:
  ecatmrp -dim=256 a2345dy1.scn a2345dy1.img
 
References:
1. Alenius S, Ruotsalainen U. Bayesian image reconstruction for emission
   tomography based on median root prior.
   Eur J Nucl Med. 1997;24(3): 258-265.
2. Alenius S, Ruotsalainen U. Generalization of median root prior
   reconstruction. IEEE Trans Med Imaging 2002; 21(11): 1413-1420.
3. Katoh C, Ruotsalainen U, Laine H, Alenius S, Iida H, Nuutila P, Knuuti J.
   Iterative reconstruction based on median root prior in quantification of
   myocardial blood flow and oxygen metabolism.
   J Nucl Med. 1999;40(5):862-867.
 
See also: ecatnorm, edecay, ecalibr, atnmake, eframe, ecatfbp, img2scn
 
Keywords: ECAT, sinogram, image, reconstruction, MRP