ABSTRACT
Improved target definition and contouring consensus is
possible with MRI imaging (3), but multiple structures not
visible on CT create confusion and necessitate training in
pelvic MRI and functional anatomy to take advantage of
this potential (4). Full integration of MRI imaging requires
registration, a potential source of error that can diminish
the advantage of MRI imaging (5,6). Multiple comple-
mentary methods of registration are available, and no
single method is without potential error. In spite of cau-
tion about registration error, the clarity of MRI imaging is
compelling, and there is little doubt that integration of a
variety of functional scans will be routine in the future.
