absscal - tpcclib 0.8.1 © 2025 by Turku PET Centre
Extraction and calibration of blood TACs measured using
automatic blood sampling systems (ABSS, "blood pump") (1).
Application name was previously blo2kbq, version 3.8.1.
Usage: absscal [Options] ABSS_file [BTAC_file]
Options:
-c=<filename>
Calibration coefficients for ABSS and well-counter should be specified
with calibration file (2), given with option -c.
-i=<isotope>
If ABSS data file does not contain the isotope code or halflife, then
it can be given with this option, using codes
C-11, F-18, Ga-68, Ge-68, O-15, ...
-decay=<on|off>
Blood data is corrected for radioactive decay (on, default), or not
corrected (off).
-start=<t>
If ABSS measurement was not started at the time of injection,
the delay t (sec) must be entered with option -start=<t>. If data
collection was started before injection, enter a negative value for t;
activities before that time are removed from the output data.
-density[=<blood density>]
With this option blood radioactivity concentrations (kBq/mL) are
divided by the given blood density (by default 1.06)
to get concentrations in units kBq/g.
-min
Sample times are written in minutes (in seconds by default).
-mean, -left, -right, -both
The counts or radioactivity concentrations are by default calculated
as the mean of the channels (-mean). With options -left and -right
only the left (ch2) or right (ch1) channel is used.
With option -both the results from both channels are saved.
Only applicable to Scanditronics and GEMS data.
-abss=<device>
ABSS produces device-specific file formats, and detectors have
calibration factors. This option is needed if ABSS can not be correctly
determined from the filename (*.lis, *.bld, *.alg, or *.txt).
Accepted devices are Scanditronics, GEMS, Allogg1, and Allogg2, or
numbers 1-4, accordingly.
-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.
Filename for corrected blood TAC data can be entered as the last command-line
argument. If not given, then file is written to the directory where ABSS file
is; calibrated file is named *.kbq and non-calibrated *.dat by default.
Example:
absscal -i=O-15 -c=S:/Lab/plasma/bsampler_calibration/pump_cal.dat sr452_blo.bld
References:
1. http://www.turkupetcentre.net/petanalysis/input_abss.html
2. http://www.turkupetcentre.net/petanalysis/input_abss_calibration.html
See also: absszero, absstime, abssexam, abssfch, taccat, disp4dft, fitdelay
Keywords: blood, input, ABSS, calibration