Martin Yaffe is professor of medical biophysics and a senior scientist at Sunnybrook Research Institute in Toronto. He is co-director of the Imaging Research Program at The Ontario Institute for Cancer Research. He holds the Tory Family Chair in Cancer Research. Yaffe has researched breast-cancer detection and breast-cancer imaging for over 40 years. His group pioneered the development of digital mammography, and quantitative measurement of breast density, an important risk factor for breast cancer. He is a principal investigator of a large randomized trial of breast tomosynthesis and is developing imaging methods of cancer biomarkers. He is a founder of Volpara Health Technologies Ltd. and sits on its scientific advisory board. He holds shares of the company in escrow and receives no funds from the company. He is a Member of The Order of Canada.