SQUID-detected microtesla MRI in the presence of metal

TitleSQUID-detected microtesla MRI in the presence of metal
Publication TypeJournal Article
Year of Publication2006
AuthorsMossle M., Han S.I, Myers W.R, Lee S.K, Kelso N., Hatridge M., Pines A, Clarke J
JournalJournal of Magnetic Resonance
Date PublishedMar
ISBN Number1090-7807
Accession NumberWOS:000236977600019

In magnetic resonance imaging performed at fields of I T and above, the presence of a metal insert can distort the image because of susceptibility differences within the sample and modification of the radiofrequency fields by screening currents. Furthermore, it is not feasible to perform nuclear magnetic resonance (NMR) spectroscopy or acquire a magnetic resonance image if the sample is enclosed in a metal container. Both problems can be overcome by substantially lowering the NMR frequency. Using a microtesla imaging system operating at 2.8 kHz, with a superconducting quantum interference device as the signal detector, we have obtained distortion-free images of a phantom containing a titanium bar and three-dimensional images of an object enclosed in an aluminum can; in both cases high-field images are inaccessible. (c) 2005 Elsevier Inc. All rights reserved.

URL<Go to ISI>://WOS:000236977600019
Short TitleSQUID-detected microtesla MRI in the presence of metal
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