simdisp - tpcclib 0.8.0 © 2023 by Turku PET Centre
Simulation or correction of input curve dispersion and delay.
Usage: simdisp [Options] tacfile dispersion delay [outputfile]
Display usage information on standard output and exit.
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.
Suppress displaying normal results on standard output.
Suppress displaying anything except errors.
If file name for output is not given, then the TAC file is modified.
The units of dispersion and delay time must be the same as sample time
units of the TAC.
Negative values can be used to correct the TAC for dispersion and/or delay.
Zero can be given for dispersion time constant or delay time.
Simulated data is saved with original sample times.
For accurate results, input TAC should have very short sampling intervals,
and in case of dispersion correction also noise-free.
Example of dispersion and delay simulation:
simdisp blood.tac 5.0 2.0 simulated.tac
Example of dispersion and delay correction:
simdisp blood.tac -5.0 -2.0 corrected.tac
Iida H, Kanno I, Miura S, Murakami M, Takahashi K, Uemura K. Error
analysis of a quantitative cerebral blood flow measurement using H215O
autoradiography and positron emission tomography, with respect to the
dispersion of the input function.
J Cereb Blood Flow Metab. 1986;6:536-545.
See also: conv1tcm, convexpf, sim_av, interpol, tactime, fitdelay
Keywords: TAC, input, blood, simulation, dispersion, time delay