Objective To evaluate the value of 18 F-deoxyglucose (FDG) positron emission tomography (PET) in detecting the primary focus of metastatic cancer with an unknown primary.
Luc De Nil, of the University of Toronto, has been poring over stutterers' brains using positron emission tomography and functional magnetic resonance imaging.
Using a medical-imaging technique called electrical-impedance tomography, Dr Safi and his colleague David McGahon are devising software that can draw a conductivity map of an entire painted structure.