A Feasibility Study of MRI in Assessment of Primary Tumor During Chemoradiation for Anal Canal and Perianal Cancer
Anal cancer is an uncommon cancer, accounting for 2% of gastrointestinal cancers. Prognostic
factors include tumor differentiation and staging, along with patient gender, race, and
socioeconomic status. The standard of care is radical chemoradiation with 5-fluorouracil and
mitomycin C, with surgery reserved for salvage. Intensity modulated radiation therapy (IMRT)
is a specialized radiotherapy technique that may be used for anal cancer. IMRT allows the
radiation dose to conform to the three-dimensional shape of the target volume more than
conventional two-dimensional techniques, and it may reduce treatment toxicities without
compromising tumor control. At the Princess Margaret Hospital (PMH) since July 2007, IMRT
for all treatment phases of radiotherapy has been implemented as standard treatment for
patients with anal canal and perianal cancer.
Observational
Observational Model: Case-Only, Time Perspective: Prospective
Primary tumor dimensions at simulation and during week 3 and last week of fractionated radiotherapy from MRI
12 months
No
Robert Dinniwell, MD
Principal Investigator
University Health Network, Princess Margaret Hospital
Canada: Ethics Review Committee
UHN REB 09-0695-CE
NCT01053923
December 2009
March 2013
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