title: The alphabet soup of perfusion CT and MR imaging: terminology revisited and clarified in five questions.
abstract: The five questions answered in this article revolve around the different parameters resulting from perfusion imaging processing, and this clarifies the frequently confusing terminology used to describe these parameters. More specifically, the article discusses the different imaging techniques and main mathematical models behind perfusion imaging, reviews the perfusion attributes of brain tissue, and proposes a standardized parameter terminology to facilitate understanding and avoid common misinterpretations.
authors.affiliation: Department of Radiology, Neuroradiology Division, University of Virginia, Charlottesville, VA, USA.
authors.forename: Carlos
authors.initials: C
authors.lastname: Leiva-Salinas
authors.forename: James M
authors.initials: JM
authors.lastname: Provenzale
authors.forename: Kohsuke
authors.initials: K
authors.lastname: Kudo
authors.forename: Makoto
authors.initials: M
authors.lastname: Sasaki
authors.forename: Max
authors.initials: M
authors.lastname: Wintermark
mesh_terms: D001810:Blood Volume; D002560:Cerebrovascular Circulation; D003287:Contrast Media; D006801:Humans; D007089:Image Enhancement / Q000379:methods; D008279:Magnetic Resonance Imaging; D015233:Models, Statistical; D020521:Stroke / Q000175:diagnosis*; D009626:Terminology as Topic; D014057:Tomography, X-Ray Computed
chemical_list: D003287:Contrast Media