PubMed · 8216536
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D Clarke. 1993. Hyperbaric oxygen therapy.. https://doi.org/10.1016/0735-6757(93)90187-g
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The construction of two novel mult-segment (MS) resonators are described. The signal-to-noise ratio (SNR) and B1 homogeneity of the coils are compared with that of a surface coil and a standard quadrature head coil. The images obtained with the MS designs revealed a surface coil-like fall-off in signal with depth. The SNR offered by MS coils was found to be better than the head coil at depths less than approximately 6 cm. Bilateral motor cortex activation on normal subjects performing finger tapping tasks is demonstrated.
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Precise analysis of lower urinary tract function was an unfulfilled dream only a century ago. By the late 19th century, water manometers and plethysmographs were utilized to measure bladder pressures. In the early 1900s, Rose developed a cystometer that was later improved by Munro. In 1938 Frederick C. McLellan, active in clinical research under Reed Nesbit at the University of Michigan, was the first to apply the earlier principles and cystometric tools to a large group of patients and created the first modern paradigm of bladder dysfunction. McLellan's work brought clinical relevance to the cystometer and thus precision to the analysis of lower urinary tract function.