Recent studies have clarified that hemodynamically compromised patients are at high risk
for subsequent stroke. The acetazolamide test is widely used to detect the patients with …

Background and Purpose—It is still unclear that impaired cerebrovascular reactivity (CVR) to
acetazolamide is comparable to elevated oxygen extraction fraction (OEF) on positron …

Reduced cerebral blood flow and cerebrovascular reactivity to acetazolamide have been
used as predictors for subsequent ischemic stroke in patients with occlusive carotid artery …

Objective The response of cerebral blood flow (CBF) to acetazolamide (ACZ) challenge is
frequently determined in clinical settings to evaluate cerebrovascular reserve (CVR). A …

Single photon emission computed tomography (SPECT) with acetazolamide challenge has
increasingly been used for evaluating hemodynamic reserve in stroke patients. The …

BACKGROUND: Reduced cerebral blood flow and cerebrovascular reactivity to
acetazolamide (type 3 ischemia) is believed as an independent predictor for subsequent …

ABSTRACT Background and Purpose. Hemodynamic compromise in symptomatic patients
with occlusive vascular disease (OVD) identified by cerebrovascular reserve (CVR) and …

Background and Purpose—Patients with carotid occlusive disease and stage 2 cerebral
hemodynamic failure, characterized by an increased oxygen extraction fraction (OEF) as …

Cerebrovascular reserve (CVR) and oxygen extraction fraction (OEF) are used to identify
hemodynamic compromise in symptomatic patients with carotid occlusive vascular disease …

The sensitivity of gradient echo magnetic resonance imaging (MRI) to changes in cerebral
blood oxygenation (CBO) has been introduced for mapping functional brain activation. Here …