dftscale 0.3.1 © 2006-2010 by Turku PET Centre
Adjust two TACs into the same level to make visual comparison easier,
or adjust the TAC peak to specified value.
Usage 1: dftscale [Options] <Datafile1> <Datafile2> <Scaled datafile2>
Usage 2: dftscale [Options] <New peak value> <Datafile> <Scaled datafile>
Options:
-x1=<start time>
Time where AUC calculation is started (by default start of data)
-x2=<end time>
Time where AUC calculation is stopped (by default end of data)
-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.
The procedure for adjusting TACs in file2 to TACs in file1 is:
1. if times x1 and x2 are not set by user, then set these based on
common time ranges in data1 and data2
2. calculate AUC1 between x1 and x2 in data1
3. calculate AUC2 between x1 and x2 in data2
4. calculate the scale factor as AUC1/AUC2
5. multiply data2 with the scale factor, and save the file.
The procedure for adjusting TAC peak is:
1. find the maximum TAC value
2. calculate the scale factor as peak/maximum
3. multiply data with the scale factor, and save the file.
See also:
dftcalc,
dftsuv,
dftsums,
dfteven,
dftavg,
dftmax,
dft2svg
Keywords: modelling, simulation, input, plotting, scaling
This program comes with ABSOLUTELY NO WARRANTY. This is free software, and
you are welcome to redistribute it under GNU General Public License.