DCMTK is a collection of libraries and applications implementing large parts
the DICOM standard. It includes software for examining, constructing
and converting DICOM image files, handling offline media, sending and receiving
images over a network connection, as well as demonstrative image storage
and worklist servers. DCMTK is is written in a mixture of ANSI C and C++.
It comes in complete source code and is made available as "open source"
software.

DCMTK has been used at numerous DICOM demonstrations to provide central,
vendor-independent image storage and worklist servers (CTNs - Central Test
Nodes). It is used by hospitals and companies all over the world for a wide
variety of purposes ranging from being a tool for product testing to being
a building block for research projects, prototypes and commercial products.