| Chemical shift imaging without water suppression at 3 T. | |
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MedLine Citation:
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PMID: 20332063 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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PURPOSE: Proton magnetic resonance spectroscopy without water suppression is possible but is hampered by the presence of sideband artifacts. The aim of this study was to develop a chemical shift imaging method without water suppression for clinical routine with reduced sideband artifacts. MATERIALS AND METHODS: Spectra from ten healthy volunteers were acquired using a 3T (TimTrio, Siemens, Erlagen, Germany) scanner with a Point RESolved Spectroscopy sequence for volume selection. Postprocessing was performed in three steps: correcting the water peak position in all spectra (chemical shift correction), subtracting the Gaussian convolution of all free induction decay signals (FIDs) (water signal reduction), and subtracting the FID of a water phantom from the volunteer's FID signal (reduction of sidebands). For the postprocessing customized software was developed with Matlab 2007b. RESULTS: The described technique provides spectra with reduced water signal and sidebands. Quantitative analysis showed that there is a good agreement between spectra obtained with water suppressing radiofrequency pulses and the new method. Moreover, spectra obtained with the new method do not need phase correction. CONCLUSION: The new method offers sufficient reduction of the water peak and sidebands. Its simplicity allows its use in clinical applications. |
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Authors:
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Grzegorz L Chadzynski; Uwe Klose |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2010-03-23 |
Journal Detail:
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Title: Magnetic resonance imaging Volume: 28 ISSN: 1873-5894 ISO Abbreviation: Magn Reson Imaging Publication Date: 2010 Jun |
Date Detail:
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Created Date: 2010-05-21 Completed Date: 2010-09-28 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8214883 Medline TA: Magn Reson Imaging Country: Netherlands |
Other Details:
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Languages: eng Pagination: 669-75 Citation Subset: IM |
Copyright Information:
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Copyright 2010 Elsevier Inc. All rights reserved. |
Affiliation:
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Department of Neuroradiology, University Hospital Tuebingen, Tuebingen, Germany. g.chadzynski@gmail.com |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adult Algorithms* Artifacts* Brain Chemistry* Female Humans Magnetic Resonance Spectroscopy / methods* Male Protons / diagnostic use Reproducibility of Results Sensitivity and Specificity Water / analysis* |
| Chemical | |
Reg. No./Substance:
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0/Protons; 7732-18-5/Water |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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