MRI-guided prostate radiation therapy allows for real-time adjustments to the radiation beam trajectory based on patient movement or rectal gas, significantly reducing rectal side effects.

“now there is MRI guided um prostate radiation so again we do MRIs to see prostate cancers because it's way more resolution not CT scans so you can theoretically resolve to the prostate much better and now there's a single um MRI guided r a linear accelerator that does intra fractional modifications of the dosage based on subtle movements right so if you take a deep breath or there's a little rectal gas y it will capture it within between the fractions of radiation delivered and alter the trajectory of the beam and that trial there's a trial called The Mirage study it was done at UCLA and they showed that there was you know there's almost zero rectal side effects from it”