Diffusion-weighted MR imaging of the brain

PW Schaefer, PE Grant, RG Gonzalez - Radiology, 2000 - pubs.rsna.org
Diffusion-weighted magnetic resonance (MR) imaging provides image contrast that is different
from that provided by conventional MR techniques. It is particularly sensitive for detection …

Diffusion-weighted imaging discriminates between cytotoxic and vasogenic edema in a patient with eclampsia

PW Schaefer, FS Buonanno, RG Gonzalez… - Stroke, 1997 - Am Heart Assoc
Background The pathophysiology of eclampsia remains unclear. While the majority of
patients develop reversible T2 hyperintense signal abnormalities on MR scans and reversible …

Assessing tissue viability with MR diffusion and perfusion imaging

PW Schaefer, Y Ozsunar, J He… - American Journal …, 2003 - Am Soc Neuroradiology
BACKGROUND AND PURPOSE: Diffusion- (DW) and perfusion-weighted (PW) MR
imaging reflect neurophysiologic changes during stroke evolution. We sought to determine …

Diffusion-weighted MR imaging: diagnostic accuracy in patients imaged within 6 hours of stroke symptom onset

RG Gonzalez, PW Schaefer, FS Buonanno… - Radiology, 1999 - pubs.rsna.org
PURPOSE: To evaluate the diagnostic accuracy of diffusion-weighted magnetic resonance (MR)
imaging performed within 6 hours of the onset of stroke symptoms. MATERIALS AND …

Diffusion tensor imaging as potential biomarker of white matter injury in diffuse axonal injury

…, LH Schwamm, PW Schaefer… - American Journal …, 2004 - Am Soc Neuroradiology
BACKGROUND AND PURPOSE: Multiple biomarkers are used to quantify the severity of
traumatic brain injury (TBI) and to predict outcome. Few are satisfactory. CT and conventional …

Glial tumor grading and outcome prediction using dynamic spin-echo MR susceptibility mapping compared with conventional contrast-enhanced MR: confounding …

…, FH Hochberg, PW Schaefer… - American Journal …, 2004 - Am Soc Neuroradiology
BACKGROUND AND PURPOSE: The MR imaging characteristics of oligodendrogliomas and
astrocytomas on spin-echo (SE), echo-planar relative cerebral blood volume (rCBV) maps, …

Significance of large vessel intracranial occlusion causing acute ischemic stroke and TIA

…, M Chou, SC Johnston, G Gonzalez, PW Schaefer… - Stroke, 2009 - Am Heart Assoc
Background and Purpose— Acute ischemic stroke due to large vessel occlusion (LVO)—vertebral,
basilar, carotid terminus, middle and anterior cerebral arteries—likely portends a …

Time course of lesion development in patients with acute stroke: serial diffusion-and hemodynamic-weighted magnetic resonance imaging

…, R Budzik, G Rordorf, FS Buonanno, PW Schaefer… - Stroke, 1998 - Am Heart Assoc
Background and Purpose—We sought to characterize the evolution of acute ischemic stroke
by MRI and its relationship to patients’ neurological outcome. Methods—Fourteen patients …

Predicting cerebral ischemic infarct volume with diffusion and perfusion MR imaging

PW Schaefer, GJ Hunter, J He… - American Journal …, 2002 - Am Soc Neuroradiology
BACKGROUND AND PURPOSE: Diffusion and perfusion MR imaging have proved useful
in the assessment of acute stroke. We evaluated the utility of these techniques in detecting …

CT and conventional and diffusion-weighted MR imaging in acute stroke: study in 691 patients at presentation to the emergency department

ME Mullins, PW Schaefer, AG Sorensen, EF Halpern… - Radiology, 2002 - pubs.rsna.org
PURPOSE: To compare the diagnostic accuracy of computed tomography (CT) and
magnetic resonance (MR) imaging in a consecutive series of patients at presentation to the …