Nuclear Spin Noise Imaging

NMR images were obtained from the proton spin noise signals of a water-containing phantom, which was placed in the highly tuned, low-noise resonant circuit of a cryogenically cooled NMR probe in the presence of systematically varied magnetic field gradients. The spatially resolved proton spin densit...

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Published inProceedings of the National Academy of Sciences - PNAS Vol. 103; no. 18; pp. 6790 - 6792
Main Authors Müller, Norbert, Jerschow, Alexej
Format Journal Article
LanguageEnglish
Published United States National Academy of Sciences 02.05.2006
Subjects
Electromagnetic noise
Humans
Image Processing, Computer-Assisted
Imaging
Irradiation
Magnetic fields
Magnetic resonance imaging
Magnetic Resonance Spectroscopy
Magnetics
NMR
Noise spectra
Noise temperature
Nuclear magnetic resonance
Nuclear spin
Physical Sciences
Protons
Sensitivity
Signal noise
Tomography
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Summary:NMR images were obtained from the proton spin noise signals of a water-containing phantom, which was placed in the highly tuned, low-noise resonant circuit of a cryogenically cooled NMR probe in the presence of systematically varied magnetic field gradients. The spatially resolved proton spin density was obtained from the raw signal by a modified projection-reconstruction protocol. Although spin noise imaging is inherently less sensitive than conventional magnetic resonance imaging, it affords an entirely noninvasive visualization of the interior of opaque objects or subjects. Thus, tomography becomes possible even when neither x-ray nor radio frequency radiation can be applied for technical or safety reasons.
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Communicated by E. L. Hahn, University of California, Berkeley, CA, March 9, 2006
Author contributions: N.M. and A.J. designed research; N.M. and A.J. performed research; N.M. and A.J. analyzed data; and N.M. and A.J. wrote the paper.
ISSN:0027-8424
1091-6490
DOI:10.1073/pnas.0601743103