/usr/lib/x86_64-linux-gnu/libvtkDICOM.so is in libvtk-dicom-dev 0.7.10-1+b2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libvtkDICOM.so.0.7
/usr/lib/x86_64-linux-gnu/libvtkDICOM.so.0.7