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Broadband ultrasonic attenuation (BUA) between 0.1 and 0.6 MHz and speed of sound (SOS) were measured on the os calcis in normal women (n = 40), and women who had mild osteoporosis (n = 36). Comparisons were made between the ultrasonic properties and bone mineral densities (BMD) obtained using photon absorptiometry on the lumbar spine, proximal femur and(More)
Introduction Real-time prospective correction of global inter-image head motion in fMR1 has previously been demonstrated for linear and rotational motion in a single plane [1,2]. With this approach, a group of echo planar images in an IMRI time series is preceded by a navigator echo which is then used to prospectively correct for inter-image head motion.(More)
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