$ sudo apt-get update
$ sudo apt-get install dcmtk-www 

dcmtk-www is installed in your system.

Make ensure the dcmtk-www package were installed using the commands given below,

$ sudo dpkg-query -l | grep dcmtk-www *

You will get with dcmtk-www package name, version, architecture and description in a table

dcmtk-www package basic information: