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Ultrasonographic cerebral perfusion in assessment of brain death: a preliminary study
Josep M Abadal1, Juan A Llompart-Pou, Javier Homar
1Servicio de Medicina Intensiva, Hospital Universitario Son Dureta, 07014 Palma de Mallorca, Illes Balears, Spain.
Objective:
The purpose of this series was to describe the ultrasonographic perfusion pattern in patients with brain death.
Methods:
Thirteen patients with different neurologic disorders in whom brain death developed were studied. Transcranial perfusion was analyzed after injection of 2.5 mL of a sulfur hexafluoride ultrasonographic contrast agent. Time-intensity curves were analyzed in predetermined regions of interest.
Results:
In all patients, analysis of regions of interest showed no bolus-like curve progression. This finding implies a complete absence of cerebral perfusion.
Conclusions:
Patients with brain death studied by ultrasonographic perfusion techniques have a characteristic pattern.
