3 results match your criteria: "Fletcher Allen Health Care-University of Vermont School of Medicine[Affiliation]"

Objective: Parallel transmission MRI at 3 T improves image quality by reducing dielectric effects with radiofrequency shimming. The purpose of this study was to determine whether parallel transmission MRI improves signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR) in lumbar spine MRI at 3 T.

Materials And Methods: Ten healthy volunteers underwent T1-weighted MRI and nine healthy volunteers underwent T2-weighted MRI of the lumbar spine.

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The purpose of this study was to determine the discrepancy rates of radiology residents interpreting emergent neck and Circle of Willis magnetic resonance angiography (MRA) studies and to detect any adverse clinical outcomes. Three hundred seventeen MRA studies given preliminary reading by radiology residents were retrospectively reviewed over a 2-year period. Discrepancies were classified as either false negatives (failure to diagnose abnormalities) or false positives (misinterpreting normal scans as abnormal).

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Purpose: To determine the discrepancy rates of radiology residents interpreting emergent neuroradiology magnetic resonance (MR) imaging studies and to assess any adverse clinical outcomes.

Materials And Methods: Three hundred sixty-one brain and spine MR imaging and MR angiographic examinations that were ordered emergently after hours and given preliminary interpretations by radiology residents were retrospectively reviewed from December 1, 2006 to May 31, 2007 with institutional review board approval. Discrepancies between the interpretations of radiology residents and the final reports of attending neuroradiologists were classified as either false-negative (FN, failure to recognize abnormalities) or false-positive (FP, misinterpreting normal images as abnormal).

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