He is a Radiation Oncologist at the Princess Margaret Cancer Centre and is the Lung Cancer Site Group Leader, Radiation Medicine Program. His research interests include clinical trials in lung cancer and he is the Lead Principal Investigator of RTOG/NRG Oncology at Princess Margaret Cancer Centre. His lung cancer research interests include the incorporation of metabolic imaging in the management of lung cancer patients. He is the Principal Investigator of the PET Boost trial, a prospective randomized trial with the addition of FDG-PET imaging to boost the radiation dose in locally advanced non-small cell lung cancer (LA-NSCLC). He is also leading another prospective study with FAZA-PET imaging in LA-NSCLC, examining the addition of FAZA, a hypoxic PET tracer.