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Coupling HPLC and NMR is one of the most powerful techniques for simultaneous separation and structural elucidation of unknown compounds in mixtures. To date, however, minimizing the detection volume, as is required when coupling NMR with miniaturized separation techniques, has been accompanied by a dramatic loss in resolution of the NMR spectra. Here, we(More)
PURPOSE To evaluate magnetic resonance (MR) imaging with ultrasmall superparamagnetic iron oxide (USPIO) enhancement for preoperative axillary lymph node staging in patients with breast cancer by using histopathologic findings as the standard of reference. MATERIALS AND METHODS MR imaging was performed with a 1.5-T system within 24-36 hours after the(More)
The purpose of this study was to evaluate the monitoring and diagnostic potential of MRI in fetal lung development and disease using lung volume and signal intensity changes through gestation. Thirty-five healthy fetuses (22-42 weeks) were examined on a 1.5- T MR system using sagittal T2w single-shot fast spin-echo imaging (TR indefinite, TE 90 ms, slice(More)
and has been a consultant to Multiple Access Communications Ltd., UK. He currently holds the established Chair of Telecommunications. He co-authored 19 Wiley/IEEE Press books on mobile radio communications and published in excess of 900 research papers. He was awarded a number of distinctions, most recently the 2007 WCNC best paper award, a best-paper award(More)
PURPOSE To establish obstetric magnetic resonance (MR) pelvimetric reference values in a large study population and stratify them according to delivery modality and to determine the intra- and interobserver error and intraindividual variability of MR pelvimetric assessment in volunteers. MATERIALS AND METHODS MR pelvimetric data were retrospectively(More)
OBJECTIVE The aim of this report was to determine the feasibility of fetal cardiotocography during MR imaging and the safety of 1.5-T MR imaging on the basis of fetal heart activity and fetal movements. CONCLUSION Fetal cardiotocography is feasible during MR imaging using modified standard equipment. The use of 1.5-T MR imaging appears to be safe and to(More)
Traditional workflow management systems are suited to automate well-structured processes based on a strict sequence of user tasks and a top-down approach to model creation. Such a conventional approach does not comply with the bottom-up philosophy of social software and therefore makes it difficult to incorporate its strengths in process modeling and(More)
The video performance of the Median wireless asynchronous transfer mode (WATM) system is evaluated for a range of application scenarios using the H.263 video codec and a novel packetisation and acknowledgement scheme. The video resolutions and system parameters used are summarised in Tables 1 and 2. The required channel signal-to-noise ratio for(More)