title: Posterior reversible encephalopathy syndrome on computed tomography perfusion in a patient on "Triple H" therapy.
abstract: BACKGROUND
  This article reports a case of posterior reversible encephalopathy syndrome on compyted tomography (CT) perfusion in a patient on "Triple H" (hypertension, hypervolemia, and hemodilution) therapy following aneurysmal rupture repair.
  
  
  METHODS
  "Triple H" therapy is used in the postoperative course for treatment of vasospasm to prevent stroke and hemorrhage by maintaining cerebral perfusion pressure.
  
  
  CONCLUSIONS
  A potential complication includes vasogenic edema from dysfunction of cerebral blood vessel autoregulation. CT perfusion can detect alterations in cerebral blood flow and volume caused by these hemodynamic changes.
authors.affiliation: Department of Radiology, NY Presbyterian Hospital, Weill Medical College of Cornell University, New York 10021, USA. pcs9001@med.cornell.edu
authors.forename: Pina C
authors.initials: PC
authors.lastname: Sanelli
authors.forename: Melissa A
authors.initials: MA
authors.lastname: Jacobs
authors.forename: Igor
authors.initials: I
authors.lastname: Ougorets
authors.forename: Matthew J
authors.initials: MJ
authors.lastname: Mifsud
mesh_terms: D005260:Female; D006438:Hemodilution / Q000009:adverse effects; D006706:Homeostasis; D006801:Humans; D006973:Hypertension / Q000209:etiology; D002532:Intracranial Aneurysm / Q000000981:diagnostic imaging; D008875:Middle Aged; D013345:Subarachnoid Hemorrhage / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed / Q000009:adverse effects*; D014883:Water-Electrolyte Imbalance / Q000209:etiology*