An improved trap design for decoupling multinuclear RF coils

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An improved trap design for decoupling multinuclear RF coils.

PURPOSE Multinuclear magnetic resonance spectroscopy and imaging require a radiofrequency probe capable of transmitting and receiving at the proton and non-proton frequencies. To minimize coupling between probe elements tuned to different frequencies, LC (inductor-capacitor) traps blocking current at the (1)H frequency can be inserted in non-proton elements. This work compares LC traps with LCC...

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Introduction The growing availability of high-field whole body scanners has generated increasing interest in non-proton in vivo spectroscopy, and with it, multinuclear RF coil design. In most non-proton applications, simultaneous or sequential operation at the proton frequency is required as well; proton decoupling, scout imaging, and polarization transfer methods are cases where transmission/r...

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A surface coil is any radiofrequency (RF) coil placed directly on the surface of the subject. Surface coils represent some of the simplest coil designs used in magnetic resonance, but are commonly used in experiments requiring the highest possible sensitivity. In contrast to volume coils, which are designed to provide homogeneous sensitivity over the whole field-of-view, surface coils sacrifice...

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Introduction MR imaging of mice in medical research has allowed for well controlled disease models for pharmokinetic and dynamic tests of new contrast and therapeutic agents. However, the volume of interest in mice is typically several orders of magnitude smaller than in humans, and concomitantly the number of spins that contribute to the signal in an MR exam will be substantially smaller, ther...

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ژورنال

عنوان ژورنال: Magnetic Resonance in Medicine

سال: 2013

ISSN: 0740-3194,1522-2594

DOI: 10.1002/mrm.24931