Functional magnetic resonance imaging with echo planar imaging

KK Kwong - Magnetic resonance quarterly, 1995 - Springer
Functional magnetic resonance imaging (fMRI), a class of techniques that images intrinsic
blood signal change with magnetic resonance (MR) imagers, has in the past 3 years become …

Contrast agents and cerebral hemodynamics

…, CR Fisel, HJ Aronen, KK Kwong… - Magnetic resonance …, 1991 - Wiley Online Library
Contrast‐enhanced magnetic resonance imaging of regional cerebral hemodynamics is
discussed. Techniques for measuring cerebral blood volume (CBV) have been validated in …

Dynamic magnetic resonance imaging of human brain activity during primary sensory stimulation.

KK Kwong, JW Belliveau, DA Chesler… - Proceedings of the …, 1992 - National Acad Sciences
Neuronal activity causes local changes in cerebral blood flow, blood volume, and blood
oxygenation. Magnetic resonance imaging (MRI) techniques sensitive to changes in cerebral …

Mr perfusion studies with t1‐weighted echo planar imaging

KK Kwong, DA Chesler, RM Weisskoff… - Magnetic …, 1995 - Wiley Online Library
The T 1 perfusion model has worked well in brain functional studies where flow changes
are measured. Using selective and nonselective inversion pulses, a new method has been …

Borders of multiple visual areas in humans revealed by functional magnetic resonance imaging

MI Sereno, AM Dale, JB Reppas, KK Kwong… - Science, 1995 - science.org
The borders of human visual areas V1, V2, VP, V3, and V4 were precisely and noninvasively
determined. Functional magnetic resonance images were recorded during phase-encoded …

Object-related activity revealed by functional magnetic resonance imaging in human occipital cortex.

…, JB Reppas, RR Benson, KK Kwong… - Proceedings of the …, 1995 - National Acad Sciences
The stages of integration leading from local feature analysis to object recognition were explored
in human visual cortex by using the technique of functional magnetic resonance imaging…

Mechanisms of migraine aura revealed by functional MRI in human visual cortex

…, D Bakker, B Fischl, KK Kwong… - Proceedings of the …, 2001 - National Acad Sciences
Cortical spreading depression (CSD) has been suggested to underlie migraine visual aura.
However, it has been challenging to test this hypothesis in human cerebral cortex. Using high…

Functional analysis of human MT and related visual cortical areas using magnetic resonance imaging

RB Tootell, JB Reppas, KK Kwong… - Journal of …, 1995 - Soc Neuroscience
Using noninvasive functional magnetic resonance imaging (fMRI) technique, we analyzed
the responses in human area MT with regard to visual motion, color, and luminance contrast …

A functional MRI study of subjects recovered from hemiparetic stroke

…, RR Benson, JD Kaplan, RA Parker, KK Kwong… - Stroke, 1997 - Am Heart Assoc
Background and Purpose Stroke recovery mechanisms remain incompletely understood,
particularly for subjects with cortical stroke, in whom limited data are available. We used …

Calibrated functional MRI: mapping the dynamics of oxidative metabolism

TL Davis, KK Kwong, RM Weisskoff… - Proceedings of the …, 1998 - National Acad Sciences
MRI was extended to the measurement of changes in oxidative metabolism in the normal
human during functionally induced changes in cellular activity. A noninvasive MRI method that …