| [Development of a linear stage compatible for magnetic resonance imaging systems]. | |
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MedLine Citation:
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PMID: 20702980 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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A magnetic resonance imaging (MRI) system compatible linear stage was developed. The stage was made of acrylic plastic and moving power was applied by an ultrasonic motor. Moving distance of the stage was detected by counting the number of motor rotations using a optic fiber sensor. Accuracy and precision of the stage control were measured inside and outside the magnet using a micrometer and a laser distance meter. As a result, a value of more than 95% was achieved in both of them in the 1.5 T magnetic field when it was applied for more than a 0.3 mm movement. Measurement of the slice sensitivity profile (SSP) by the delta method was performed. Slice selection by this linear stage and by radio frequency (RF) offset were compared. The result by linear stage was in good agreement with the result by RF offset. With this linear stage, a performance evaluation test of MRI equipments that need micromotion can be performed. |
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Authors:
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Yoshiyuki Ishimori; Isao Yamaguchi; Yasuhiro Fujiwara |
Publication Detail:
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Type: English Abstract; Journal Article |
Journal Detail:
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Title: Nihon Hoshasen Gijutsu Gakkai zasshi Volume: 66 ISSN: 0369-4305 ISO Abbreviation: Nihon Hoshasen Gijutsu Gakkai Zasshi Publication Date: 2010 Jun |
Date Detail:
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Created Date: 2010-08-12 Completed Date: 2010-09-30 Revised Date: 2011-07-28 |
Medline Journal Info:
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Nlm Unique ID: 7505722 Medline TA: Nihon Hoshasen Gijutsu Gakkai Zasshi Country: Japan |
Other Details:
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Languages: jpn Pagination: 625-31 Citation Subset: IM |
Affiliation:
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Department of Radiological Sciences, Ibaraki Prefectural University of Health Sciences, Japan. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Magnetic Resonance Imaging
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instrumentation* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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