Background and Purpose— Perfusion magnetic resonance imaging (pMR) is increasingly
used in acute stroke, but its physiologic significance is still debated. A reasonably good …

Background and Purpose— Nitroimidazole imaging is a promising contender for noninvasive
in vivo mapping of brain hypoxia after stroke. However, there is a dearth of knowledge …

BACKGROUND AND PURPOSE: Although chronic-stage crossed cerebellar diaschisis (CCD)
is reported to be associated with the neurologic state or clinical improvement after infarct, …

Background and Purpose— Higher plasma total homocysteine (tHcy) levels have been
associated with carotid atherosclerosis and cerebral infarction in whites. However, data …

In acute stroke, the target of therapy is the severely hypoxic but salvageable tissue. Previous
human studies using 18 F-fluoromisonidazole and positron emission tomography ( 18 F-…

Residual inhibition is a transient suppression of tinnitus after auditory stimulation has
stopped. We used positron emission tomography to study brain regions underlying residual …

The human male psychosexual cycle consists of four phases: excitation, plateau, orgasm,
and resolution. Identification of the specific neural substrates of each phase may provide …

Purpose The extent of the hemodynamic and metabolic impairments in adult patients with
moyamoya disease is still controversial. The aim of the present study was to evaluate the …

BACKGROUND AND PURPOSE: Alzheimer disease (AD) and vascular dementia (VaD) are
the two major diseases that cause dementia, and early diagnosis is important. Single …

Small-vessel disease with dementia, which is the most frequent type of vascular dementia (VaD),
often shows a cerebral blood flow (CBF) distribution with no obvious focal …