title: Dynamic 'Spot Sign' Resolution following INR Correction in a Patient with Warfarin-Associated Intracerebral Hemorrhage.
abstract: Hematoma expansion in intracerebral hemorrhage is associated with poor clinical outcome. The 'spot sign' is a radiological marker that is associated with hematoma expansion, and thought to represent active extravasation of contrast. This case demonstrates the use of dynamic CT angiography in identifying the time-dependent appearance of a spot sign in a patient with warfarin-associated intracerebral hemorrhage. Repeat imaging is also presented which verified cessation of the spot sign after INR correction.
authors.affiliation: Department of Radiology (Neuroradiology), University of Ottawa and Ottawa Hospital Research Institute, Ottawa, Ont., Canada.
authors.forename: S
authors.initials: S
authors.lastname: Chakraborty
authors.forename: G
authors.initials: G
authors.lastname: Stotts
authors.forename: C
authors.initials: C
authors.lastname: Rush
authors.forename: M J
authors.initials: MJ
authors.lastname: Hogan
authors.forename: D
authors.initials: D
authors.lastname: Dowlatshahi