title: The use of dynamic computed tomographic angiography ancillary to the diagnosis of brain death.
abstract: OBJECTIVE
  Global absence of cerebral circulation is an important ancillary test for brain death when the diagnosis cannot be confirmed clinically. A number of imaging methods are available to assess cerebral circulation; however, new techniques are sought to improve on limitations of the current tests. Dynamic computed tomographic angiography (dCTA) is a novel technique that enables dynamic noninvasive imaging of cerebral blood flow.
  
  
  METHODS
  We present the use of dCTA in 3 cases as a corroboratory tool to diagnose brain death. Analysis of our findings suggest that it is a reliable technique for demonstrating the lack of intracranial blood flow, with many advantages over other current methods.
  
  
  CONCLUSIONS
  A dCTA may be used to reliably demonstrate the lack of cerebral blood flow in patients with suspected brain death.
authors.affiliation: Division of Neuro-imaging, Department of Diagnostic Imaging, University of Ottawa, The Ottawa Hospital, Ottawa, Ontario, Canada. schakraborty@toh.on.ca
authors.forename: Santanu
authors.initials: S
authors.lastname: Chakraborty
authors.forename: Stephanie A
authors.initials: SA
authors.lastname: Kenny
authors.forename: Reem A
authors.initials: RA
authors.lastname: Adas
mesh_terms: D000293:Adolescent; D001926:Brain Death / Q000175:diagnosis*; D002533:Cerebral Angiography / Q000379:methods*; D002560:Cerebrovascular Circulation; D003937:Diagnosis, Differential; D017809:Fatal Outcome; D006801:Humans; D008297:Male; D008875:Middle Aged; D015203:Reproducibility of Results; D014057:Tomography, X-Ray Computed / Q000379:methods*