PET/MRI in Rectal Cancer

"* TNT incorporates chemotherapy with concurrent chemoradiotherapy (CRT) in any order.~* Radiotherapy includes 5000 cGy/25 fractions over 5 weeks.~* Chemotherapy regimen for Concurrent CRT: Capecitabine~* Chemotherapy regimens used with TNT are: FOLFIRINOX x 6 cycles, 8-9 courses FOLFOX or 5-6 courses of CAPEOX delivered over 4-6 months.~* The chemotherapy regimen or the order of treatment will be decided at the discretion of the patient's medical oncologist"

18FDG-PET/MRI scan within 4 weeks of commencing chemo-radiation and within 1 - 2 weeks before radical rectal cancer surgery.