The use of CAT in patients with cancer is prevalent and more frequent in our population than in other published studies. Few patients use CAT to improve their cancer cure, but rather use CAT for other reasons.

The use of radiotherapy planning MRI altered CTV design, dose and/or duration of androgen deprivation in 18% of patients in this large, single institution series of men planned for dose-escalated prostate IMRT. This has substantial implications for radiotherapy target volumes and doses, as well as duration of androgen deprivation. Further research is required to investigate whether newer MRI techniques can simultaneously fulfill staging and radiotherapy contouring roles.