
doi: 10.1002/mrm.22656
pmid: 20939068
AbstractDiffusion magnetic resonance studies of the brain are typically performed using volume coils. Although in human brain this leads to a near optimal filling factor, studies of rodent brain must contend with the fact that only a fraction of the head volume can be ascribed to the brain. The use of surface coil as transceiver increases Signal‐to‐Noise Ratio (SNR), reduces radiofrequency power requirements and opens the possibility of parallel transmit schemes, likely to allow efficient acquisition schemes, of critical importance for reducing the long scan times implicated in diffusion tensor imaging. This study demonstrates the implementation of a semiadiabatic echo planar imaging sequence (echo time = 40 ms, four interleaves) at 14.1T using a quadrature surface coil as transceiver. It resulted in artifact free images with excellent SNR throughout the brain. Diffusion tensor derived parameters obtained within the rat brain were in excellent agreement with reported values. Magn Reson Med, 2011. © 2010 Wiley‐Liss, Inc.
616.8, Radio Waves, Transducers, Sensitivity and Specificity, 618, Magnetics, Diffusion Magnetic Resonance Imaging/instrumentation, Magnetics/instrumentation, Image Enhancement/instrumentation, Animals, Brain/anatomy & histology, Signal Processing, Computer-Assisted/instrumentation, Rats, Wistar, 616.0757, Echo-Planar Imaging, Echo-Planar Imaging/instrumentation, Brain, Reproducibility of Results, Signal Processing, Computer-Assisted, Equipment Design, Image Enhancement, Rats, Equipment Failure Analysis, Diffusion Magnetic Resonance Imaging, ddc: ddc:616.0757, ddc: ddc:618, ddc: ddc:616.8
616.8, Radio Waves, Transducers, Sensitivity and Specificity, 618, Magnetics, Diffusion Magnetic Resonance Imaging/instrumentation, Magnetics/instrumentation, Image Enhancement/instrumentation, Animals, Brain/anatomy & histology, Signal Processing, Computer-Assisted/instrumentation, Rats, Wistar, 616.0757, Echo-Planar Imaging, Echo-Planar Imaging/instrumentation, Brain, Reproducibility of Results, Signal Processing, Computer-Assisted, Equipment Design, Image Enhancement, Rats, Equipment Failure Analysis, Diffusion Magnetic Resonance Imaging, ddc: ddc:616.0757, ddc: ddc:618, ddc: ddc:616.8
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