img2dft 4.1.3 © 1996-2013 by Turku PET Centre
Calculates regional time-radioactivity concentration curves (TACs) from
a PET image in ECAT 6.3, ECAT 7.x, or Analyze 7.5 format, when
regions-of-interests (ROIs) are given in ECAT 6.3 format ROI files (1) or
as mask image. Regional TACs are written in output file in DFT format (2).
If filename for output file is not specified, it will be saved in the
default path replacing the extension of image filename with '.dft'.
Note that versions 4.x and after apply image upscaling for selecting
pixels inside ROIs; this might lead to smaller ROI volumes and therefore
affect also the ROI averages and variances.
Usage: img2dft [Options] <Image> <ROI file(s) or Mask image> [Output file]
Options:
-P[=<planes>]
Calculate all ROIs on all planes, or on specified plane;
by default, ROIs are calculated only on planes where they were drawn.
Effective only with ROI files.
-V[=<sd|cv>]
Calculates also the variances inside ROI(s) and saves those in
a *.var file. With options -Vsd and -Vcv standard deviation or
coefficient of variation (%) is calculated and saved as *.sd or *.cv
file, respectively.
Effective only with ROI files.
-tm Write time frame mid times instead of start and end times.
-median
Calculates ROI median instead of ROI average.
Effective only with ROI files.
-lms Calculates least median of squares estimate instead of ROI average.
Effective only with ROI files.
-lts Calculates least trimmed square estimate instead of ROI average.
Effective only with ROI files.
-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.
Options -median, -lms and -lts can only be used for parametric images.
Example 1:
img2dft a1204dy1.img a1204*.roi a1204dy1.dft
Example 2:
img2dft -P=4,6,8,10 us4321dy1.img us4321*.roi
Example 3:
img2dft -V=sd uo286suv.v uo286*.roi
Example 4:
img2dft uo286suv.v uo286mask.v
References:
1.
http://www.turkupetcentre.net/analysis/doc/format_roi.html
2.
http://www.turkupetcentre.net/analysis/doc/format_dft.html
See also:
roilist,
lmlist,
eroi2img,
roipxl,
ecatthrs,
dft2csv,
dft2res
Keywords: image, ROI, mask, ECAT, TAC, analysis, modelling
This program comes with ABSOLUTELY NO WARRANTY. This is free software, and
you are welcome to redistribute it under GNU General Public License.