title: Responses to the 10 most frequently asked questions about perfusion CT.
abstract: OBJECTIVE
  The objective of this article is to address the 10 most frequently asked questions radiologists face when planning, performing, processing, and interpreting a perfusion CT study in a patient with clinical suspicion of acute ischemic stroke.
  
  
  CONCLUSIONS
  It is important for radiologists using PCT for stroke imaging to be familiar with the perfusion software used at their institution, with the parameters that can be selected during the post-processing and how these may influence the PCT results.
authors.affiliation: Neuroradiology Division, Department of Radiology, University of Virginia, 1215 Lee St., New Hospital, 1st Fl., Rm. 1011, PO Box 800170, Charlottesville, VA 22908, USA.
authors.forename: Carlos
authors.initials: C
authors.lastname: Leiva-Salinas
authors.forename: James M
authors.initials: JM
authors.lastname: Provenzale
authors.forename: Max
authors.initials: M
authors.lastname: Wintermark
mesh_terms: D002545:Brain Ischemia / Q000000981:diagnostic imaging*; D002533:Cerebral Angiography / Q000379:methods*; D002560:Cerebrovascular Circulation; D003657:Decision Making; D006801:Humans; D018810:Magnetic Resonance Angiography; D008279:Magnetic Resonance Imaging; D011857:Radiographic Image Interpretation, Computer-Assisted; D012984:Software; D020521:Stroke / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed / Q000379:methods*