ctn software package provides Central Test Node, a DICOM implementation for medical imaging, you can install in your Ubuntu 16.04 LTS (Xenial Xerus) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install ctn
ctn is installed in your system.
Make ensure the ctn package were installed using the commands given below,
$ sudo dpkg-query -l | grep ctn *
You will get with ctn package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | Graphics |
| Package | ctn |
| Version | 3.2.0~dfsg-3build1 |
| Description | Central Test Node, a DICOM implementation for medical imaging |
| Sub Section | Graphics |