/usr/lib/x86_64-linux-gnu/libismrmrd.so.1.3 is in libismrmrd1.3 1.3.3-1build2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libismrmrd.so.1.3.3
/usr/lib/x86_64-linux-gnu/libismrmrd.so.1.3.3