Background and Purpose—The purpose of the present study was to assess whether the
direction of flow via the circle of Willis and the ophthalmic artery (OphA) changed over time …

Our aim was to study the relationship between cerebral blood flow (CBF) responses to
induced hypotension and to CO 2 inhalation in patients with occlusive disease of the carotid …

OBJECTIVES Measures capable of detecting early alterations of brain function during acute
cerebral ischaemia have not been adequately defined. Internal carotid artery (ICA) test …

The distributions of regional cerebral blood flow (rCBF) and CO2 reactivity were estimated in
normal subjects and in patients with ischemic cerebrovascular disorders, using the 133Xe …

Background and Purpose—In major cerebral arterial steno-occlusive diseases, there can be
remarkably decreased hemodynamic reserve without marked neurological impairments. In …

Objective: To investigate whether in selected patients with internal carotid artery (ICA)
occlusion and initially normal oxygen extraction fraction (OEF) measured with PET …

Purpose In internal carotid artery occlusion, patients with inadequate blood supply relative to
metabolic demand (misery perfusion) may be at increased risk for cerebral ischemia. This …

The presence or degree of haemodynamic impairment due to occlusive cerebrovascular
disease is often inferred from measurements of cerebral blood flow (CBF), cerebral blood …

Bilateral hemispheric blood flow was determined by the intravenous RISA technique in
patients with unilateral cerebral infarction. Of all 29 patients, bilateral reduction of cerebral …

Flow studies using dynamic CT and xenon (Xe) CT were carried out in 25 patients with
ischaemic stroke in the territory of the middle cerebral artery to define the clinical …