Miniaturized multi-coil arrays for functional planar imaging with a single-sided NMR sensor

Journal of Magnetic Resonance
Dirk OligschlägerB Blümich

Abstract

Nowadays most low-field NMR sensors, such as the single-sided Profile NMR-MOUSE®, still suffer from poor sensitivity, either resulting from low magnetic field strengths and correspondingly low NMR frequencies, or lack of sensitivity. Generally, micro-coils can improve sensitivity, but due to their small size, and thus small inductance, they are mainly used for high-field NMR. Their main application field is parallel imaging, where those coils are typically assembled to receive-only coil-arrays and increase the field-of-view. Prominent signal combination techniques such as GRAPPA and SENSE are used to combine the spatially independent NMR signals to images in order to increase acquisition speed. A decisive disadvantage of today's single-sided NMR probes is the limited accessibility for NMR imaging. Although it is possible to use flat gradient coils on top of the NMR-MOUSE® to apply imaging techniques, such images can only be recorded with very long acquisition times, excluding the NMR-MOUSE® for lateral imaging of time-dependent processes. In this study sensitivity improved micro-structured RF coils, optimized for low frequencies, and correspondingly arrays of these coils, were employed to improve sensitivity and gave access to ...Continue Reading

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Citations

Apr 30, 2019·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Tonima S AliKonstantin I Momot
Oct 6, 2017·Scientific Reports·Mario Henrique M KillnerLuiz Alberto Colnago
Feb 2, 2021·Journal of Magnetic Resonance·T RudszuckG Guthausen
Mar 24, 2021·Magnetic Resonance in Chemistry : MRC·Thomas RudszuckGisela Guthausen

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