View source for David Townsend ← David Townsend You do not have permission to edit this page, for the following reason: The action you have requested is limited to users in the group: Users. You can view and copy the source of this page. == Biography == The creation of the hybrid positron emission tomography (PET)/computed tomography (CT) scanner by [[Ronald Nutt|Ronald Nutt]] and David W. Townsend revolutionized diagnostic medical imaging and has enabled earlier detection of cancer and better monitoring of treatment efficacy. Introduced in 1999, the PET/CT scanner incorporates the individual strengths of existing CT and PET technology while overcoming their respective stand-alone limitations. The hybrid PET/CT scanner provides precise spatial registration of anatomy and function in a single diagnostic imaging examination. The original idea for the PET/CT scanner came when Drs. Nutt and Townsend, while working together on a PET scanner design, recognized the opportunity for integrating CT components into the gantry of an existing PET design. Dr. Townsend led the academic efforts to develop PET/CT methods and conduct the first human studies using the scanner. Dr. Nutt was instrumental in building the first prototype PET/CT system as well as developing the first commercial versions. The PET/CT scanner was named “Medical Invention of the Year” in 2000 by Time magazine. The technology was quickly adopted by industry, with more than 95% of all PET scanners sold in 2004 being PET/CT scanners. By 2006, practically all stand-alone PET scanners had been replaced by PET/CT scanners. Dr. Townsend is considered the leading authority on hybrid imaging systems as well as one of the pioneers of three-dimensional PET and its required reconstruction algorithms. An [[IEEE Fellow Grade History|IEEE Fellow]], he is currently head of PET and SPECT development for the Singapore Bio-imaging Consortium under the Agency for Science, Technology and Research and Professor of Radiology, National University of Singapore. [[Category:Medical_services]] Template used on this page: Template:Biography (view source) Return to David Townsend. Retrieved from "https://ethw.org/David_Townsend"