Analyze ECAT files with this tool. lshdr help you list the subheader of an ECAT 6.3 or 7.x file.
Currently most analysis programs can use PET image data in ECAT 7 format, which is the format that ECAT HR+ produces. During a long transitional stage most programs will be able to read also ECAT 6.3 format.
So, if you need a tool to analyze ECAT files, especially the subheaders, take this tool for a spin and see if its capabilities can satisfy your needs.

Usage: lshdr [Options] <ECAT file> [plane [frame]]
Options:
-h or --help
Print this message and exit.
--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.