Introduction
MR, prostate
PROSTATE
Radiotherapy treatment planning based only on magnetic resonance imaging (MRI), or MRI-only radiotherapy, has recently become clinically achievable [There are various approaches which have been utilised for sCT generation, such as bulk density correction methods, atlas methods, deep learning algorithms or a combination of these approaches. Bulk density correction requires only segmentation of the MRI, with appropriate density values applied to these segmentations for dose calculation [Within an MRI simulation session for MRI-only radiotherapy treatment planning, various MRI sequences may be captured for specific visualisation, such as fiducial marker identification, or target and organ at risk delineation purposes in addition to any particular sequence or sequences required for specific sCT generation methods. The MR imaging portion of the simulation session can take a significant amount of time [Previously, a volunteer study was conducted investigating the effects of MRI sequence time reduction on sCT generation for prostate MRI-only treatment planning and to determine a suitable sequence [