title: Transient reduction in venous susceptibility during posterior reversible encephalopathy syndrome.
abstract: We report a case of posterior reversible encephalopathy syndrome (PRES) in which followed-up MRI demonstrated a transient reduction in venous signal on initial SWAN images. The progressive normalization of venous signal on D10 and D40 imaging paralleled the progressive decrease of hyperperfusion on CBF images. Decreased venous susceptibility has never been reported in PRES; it relates most likely to a transient BOLD effect induced by brain hyperperfusion.
authors.affiliation: Department of Radiology, University Hospital Center, Hôpital de la Cavale-Blanche, F-29609 Brest Cedex, France; AP-HP, Pitié-Salpétrière Hospital, Department of Functional and Diagnostic Neuroradiology, F-75013 Paris, France.
authors.forename: Morgan
authors.initials: M
authors.lastname: Ollivier
authors.affiliation: AP-HP, Pitié-Salpétrière Hospital, Department of Internal Medicine, F-75013 Paris, France.
authors.forename: Emmanuelle
authors.initials: E
authors.lastname: Wanono
authors.affiliation: AP-HP, Pitié-Salpétrière Hospital, Department of Functional and Diagnostic Neuroradiology, F-75013 Paris, France.
authors.forename: Delphine
authors.initials: D
authors.lastname: Leclercq
authors.affiliation: AP-HP, Pitié-Salpétrière Hospital, Department of Internal Medicine, F-75013 Paris, France.
authors.forename: Fanny
authors.initials: F
authors.lastname: Domont
authors.affiliation: AP-HP, Pitié-Salpétrière Hospital, Department of Functional and Diagnostic Neuroradiology, F-75013 Paris, France.
authors.forename: Stéphanie
authors.initials: S
authors.lastname: Trunet
authors.affiliation: AP-HP, Pitié-Salpétrière Hospital, Department of Functional and Diagnostic Neuroradiology, F-75013 Paris, France; Sorbonne Universités, UPMC Univ Paris 06 UMR S 1127, Inserm U 1127, CNRS UMR 7225, ICM, Inria Paris-Rocquencourt, F-75013, Paris, France.
authors.forename: Didier
authors.initials: D
authors.lastname: Dormont
authors.affiliation: AP-HP, Pitié-Salpétrière Hospital, Department of Functional and Diagnostic Neuroradiology, F-75013 Paris, France; Sorbonne Universités, UPMC Univ Paris 06 UMR S 1127, Inserm U 1127, CNRS UMR 7225, ICM, Inria Paris-Rocquencourt, F-75013, Paris, France. Electronic address: anne.bertrand@aphp.fr.
authors.forename: Anne
authors.initials: A
authors.lastname: Bertrand
mesh_terms: D000328:Adult; D002550:Cerebral Veins / Q000503:physiopathology*; D002560:Cerebrovascular Circulation / Q000502:physiology*; D005260:Female; D006801:Humans; D018810:Magnetic Resonance Angiography; D008279:Magnetic Resonance Imaging / Q000379:methods*; D054038:Posterior Leukoencephalopathy Syndrome / Q000503:physiopathology*; D055815:Young Adult
keywords: Arterial spin labeling (ASL); Blood-oxygen level dependent (BOLD); Magnetic resonance imaging (MRI); Posterior reversible encephalopathy syndrome (PRES); SWAN; Susceptibility-weighted imaging (SWI); T2*