Process ECAT 7 polar map with this tool. pm2dft can extract the sectors in every ring of a ECAT 7 polar map into DFT file.
A variant of ECAT 7 polar map format can be used for storing and modeling myocardial PET data. Dynamic and parametric polar map can be converted to/from DFT file with this little utility.
So, if you were looking for a program to help you analyze ECAT 7 polar maps, try this tool and check out it its capabilities can satisfy your needs.

Usage: pm2dft [Options] <ECAT file> <DFT filename>
This program writes the following information (contents is dependent on the polar map) in DFT file as comments; this is needed if DFT file is converted back to ECAT 7 polar map:
# num_rings := 4
# sectors_per_ring := 6 6 4 1
# ring_position := 0 0.2 0.4 0.6
# ring_angle := 90 90 45 0

Options:
-h or --help
Print this message and exit
-v, --version or --build
Print software build information and exit
--silent
Program works silently, printing only error and warning messages.

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