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Relationship between variations in the circle of Willis and flow rates in internal carotid and basilar arteries determined by means of magnetic resonance imaging with semiautomated lumen
BACKGROUND AND PURPOSE Volume flow rates in the feeding arteries of the brain are measured to evaluate blood flow dynamics in vascular disease. Although these flow values are thought to be effectedExpand
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Evaluation of left ventricular volume and mass with breath-hold cine MR imaging.
Left ventricular (LV) volumes and mass were evaluated in 10 healthy volunteers with breath-hold cine magnetic resonance (MR) imaging. The results were compared with those obtained with conventionalExpand
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Lateral geniculate nucleus: anatomic and functional identification by use of MR imaging.
BACKGROUND AND PURPOSE MR imaging has the potential capacity for noninvasively depicting the anatomy and function of thalamic nuclei. The purpose of this study was to identify the lateral geniculateExpand
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Quantification of mitral regurgitation by velocity-encoded cine nuclear magnetic resonance imaging.
OBJECTIVES The feasibility of velocity-encoded cine nuclear magnetic resonance (NMR) imaging to measure regurgitant volume and regurgitant fraction in patients with mitral regurgitation wasExpand
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Variation in left ventricular regional wall stress with cine magnetic resonance imaging: normal subjects versus dilated cardiomyopathy.
We measured the variation of end-systolic wall stress and its relation to regional ejection fraction in short-axis planes through the left ventricle in normal subjects and in patients with dilatedExpand
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Degeneration of the Pyramidal Tracts in Patients with Amyotrophic Lateral Sclerosis
To investigate focal hyperintensity in the internal capsule (1C) on magnetic resonance images (MRIs) and its clinical significance, 80 patients with amyotrophic lateral sclerosis (ALS) and 80 sex‐Expand
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Decrease in N-acetylaspartate/creatine ratio in the motor area and the frontal lobe in amyotrophic lateral sclerosis
Abstract We studied whether N-acetylaspartate (NAA), a neuronal marker, is reduced in the brain of 14 patients with clinically definite amyotrophic lateral sclerosis (ALS) and whether NAA levels inExpand
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Effects of stimulus rate on the auditory cortex using fMRI with ‘sparse’ temporal sampling
The purpose of this study was to evaluate the effects of the auditory stimulus presentation rate on signal response during fMRI with a minimal effect of scanner acoustic noise. Six subjects receivedExpand
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Velocity-encoded cine MRI in the evaluation of left ventricular diastolic function: measurement of mitral valve and pulmonary vein flow velocities and flow volume across the mitral valve.
Left ventricular diastolic function has been evaluated by means of analysis of the flow pattern through the mitral valve. Velocity-encoded cine magnetic resonance imaging (VEC-MR) is a new method forExpand
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Cardiac tumors: assessment with Gd-DTPA enhanced MR imaging.
Previous studies have shown the value of MR imaging for the identification of cardiac masses. The distinction of intramural tumors from normal myocardium may be equivocal because of the similarity ofExpand
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