Matthew R. Thompson

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The influence of local static magnetic field inhomogeneities on gradient-echo imaging is discussed and the underlying theoretical aspects are reviewed. A high-resolution approach is suggested to suppress image distortion and restore signal loss due to spin dephasing. Acquisition of three-dimensional data sets not only overcomes part of the limitations(More)
An insertable head gradient coil with a maximum gradient amplitude of 45 mT/m and a rise time of 150 musec along all three major axes was used to collect high-spatial-resolution, single-shot, spin-echo, echo-planar, diffusion-weighted magnetic resonance images with b values ranging from 0 to 2,200 sec/mm2. Improvements in spatial resolution allowed better(More)
BACKGROUND The ability to take a step quickly is important for balance maintenance during activities of daily living. The purpose of this study was to investigate the effects of age, reaction condition, and step direction on the ability to take a volitional step as fast as possible. METHODS The performance of a voluntary step task was measured in young(More)
ii The views expressed in this article are those of the author and do not necessarily reflect the official policy or position of the Department of the Navy, Department of Defense, nor the U.S. Government. iii For Sarah and Lucy, Who are with me through the rise and fall, Keeping me grounded, And helping me reach the zenith. iv Acknowledgment I want to thank(More)
BACKGROUND Goal-directed ultrasound protocols have been developed to facilitate efficiency, throughput, and patient care. Hands-on instruction and training workshops have been shown to positively impact ultrasound training. OBJECTIVES We describe a novel undifferentiated chest pain goal-directed ultrasound algorithm-focused education workshop for the(More)
This article describes the rationale, processes, technology, and results of creating of a paper-based rounds report that is now used by our entire institution for efficient inpatient work rounds and checkout rounds that are routinely done in virtually every hospital, both academic and private, in the US. The results of a survey of clinicians suggests that(More)
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