Analyze ECAT files with this utility. edecay can report and change the correction for physical decay in PET image and sinogram data in ECAT 6.3 and 7.x format.
One thing worth mentioning is that if no option is specified, program reports the current state of decay correction, but makes no changes to the data file.
So, if you were looking for a tool to help you analyze ECAT files with ease, try edecay and check out if its capabilities can satisfy your needs.

Usage: edecay [Options] <Image or Sinogram>

Options:
-dd
Correct PET data for physical decay.

-rd
Remove decay correction. Make sure that PET is decay corrected before this operation.

-i=<O-15|N-13|C-11|F-18|Ge-68|Ga-68|Br-76|Rb-82|Cu-62>
Changes or specifies the isotope. Any previous decay correction must be removed before this operation. Note that image may need to be recalibrated if isotope is changed.

-dc
Add decay correction factors to the image data. This option does not add decay correction to the pixel values.

-rc
Remove decay correction factors from the image data. This option does not remove decay correction from the pixel values.

-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 license of this software is Freeware, you can free download and free use this calculator software.