Quick Search:

uzh logo
Browse by:
bullet
bullet
bullet
bullet

Zurich Open Repository and Archive 

Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-24020

Brunner, D O; De Zanche, N; Fröhlich, J; Paska, J; Pruessmann, K P (2009). Travelling-wave nuclear magnetic resonance. Nature, 457(7232):994-998.

[img] PDF - Registered users only
1MB
[img]Accepted Version
PDF
1MB

Abstract

Nuclear magnetic resonance (NMR) is one of the most versatile experimental methods in chemistry, physics and biology, providing insight into the structure and dynamics of matter at the molecular scale. Its imaging variant-magnetic resonance imaging (MRI)-is widely used to examine the anatomy, physiology and metabolism of the human body. NMR signal detection is traditionally based on Faraday induction in one or multiple radio-frequency resonators that are brought into close proximity with the sample. Alternative principles involving structured-material flux guides, superconducting quantum interference devices, atomic magnetometers, Hall probes or magnetoresistive elements have been explored. However, a common feature of all NMR implementations until now is that they rely on close coupling between the detector and the object under investigation. Here we show that NMR can also be excited and detected by long-range interaction, relying on travelling radio-frequency waves sent and received by an antenna. One benefit of this approach is more uniform coverage of samples that are larger than the wavelength of the NMR signal-an important current issue in MRI of humans at very high magnetic fields. By allowing a significant distance between the probe and the sample, travelling-wave interaction also introduces new possibilities in the design of NMR experiments and systems.

Item Type:Journal Article, refereed, further contribution
Communities & Collections:04 Faculty of Medicine > Institute of Biomedical Engineering
DDC:170 Ethics
610 Medicine & health
Language:English
Date:2009
Deposited On:18 Nov 2009 12:34
Last Modified:23 Nov 2012 12:50
Publisher:Nature Publishing Group
ISSN:0028-0836
Publisher DOI:10.1038/nature07752
PubMed ID:19225521
Citations:Google Scholar™
Scopus®. Citation Count: 59

Users (please log in): suggest update or correction for this item

Repository Staff Only: item control page