MRCAT dose virtually identical to that of CT-based radiotherapy plans
TYKS’s assistant chief physicist Jani Keyriläinen, PhD and medical physicists Sami Suilamo, Lic.Phil., and Pauliina Wright, PhD, led a three-phase commissioning process for MR-only simulation use in prostate radiotherapy, that began in January 2016 and concluded in March 2017. The first phase lasted eight months and consisted of CT-MRI simulation of a control group involving 74 prostate cancer patients.
“These first patients were planned based on CT simulation, but we also did preliminary dose calculation comparisons with both CT and MRI data sets,” Dr. Keyriläinen says. “In the second phase, October 2016 to February 2017, we imaged 62 patients with both CT and MRI, but these patients were planned with the MR images only.