Figure 2From: Fulminant listerial infection of the central nervous system in an otherwise healthy patient: a case report Optic nerve sonography showed increased optic nerve sheath diameter (A, B); Transcranial Doppler sonography documented increased (1,72) pulsatility index in the right middle cerebral artery (C); the patient was declared 'brain dead' by clinical tests, while transcranial Doppler showed a reversal of diastolic blood flow in the left middlecerebral artery (D).Back to article page