ABSTRACT
This chapter describes the configuration and design of the brachytherapy room when it is configured to interface with the magnetic resonance (MR) system. It describes the brachytherapy facility of a larger magnetic resonance imaging (MRI) guidance facility built within the Princess Margaret Cancer Centre. Three-dimensional treatment planning is the modern standard for brachytherapy as computed tomography (CT) imaging has widely replaced projection imaging in brachytherapy practice. When the MR-brachytherapy doors, which provide both radiation and radiofrequency (RF) shielding, are closed, adjacent MR room can be used as a standalone MR simulation suite. The brachytherapy room features sufficient RF shielding so that the space can also be used for MRI when the MR-brachytherapy doors are opened to allow the MR travel into the brachytherapy space. Safety considerations for radiation therapy and MRI are both well developed, with well-known best practices. The MR system is an adaptation of IMRIS Visius Surgical Theatre, which includes an MR scanner and ceiling-mounted MR transport system.
