| Dynamic imaging of swallowing in a seated position using open-configuration MRI. | |
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MedLine Citation:
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PMID: 17659564 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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PURPOSE: To assess the feasibility of dynamic MRI of swallowing in a seated position using an open-configuration MRI scanner, and to compare its capacity for motion analysis around the pharyngeal wall with that of videofluorography. MATERIALS AND METHODS: Six healthy individuals (four women and two men, mean age = 31.4 +/- 7.5 years) were examined with an open-configuration MRI system using a fast spoiled gradient-recalled echo (SPGR) sequence. Dynamic imaging was performed while the subjects were in a seated position after they swallowed oral contrast medium from a cup. An oral and maxillofacial radiologist measured the motion of six structures: the hyoid bone (HB), larynx (LX), upper oropharynx (UOP), lower oropharynx (LOP), pharyngoesophageal segment (PES) behind the vocal folds, and upper esophagus (ESO). The measured motions were compared with reported values from videofluorography-based observations. RESULTS: Open-configuration MRI depicted the anatomic structures related to swallowing (lip, tongue, soft palate, mandible, pharynx, HB, LX, and PES), and the course of the mylohyoid muscle (MM). The vertical and anteroposterior displacements of these structures did not differ significantly from those measured by videofluorography. CONCLUSION: Dynamic imaging of swallowing using open-configuration MRI provides image information comparable to that obtained from videofluorography. |
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Authors:
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Yasutoshi Honda; Nobuhiko Hata |
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Publication Detail:
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Type: Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Journal of magnetic resonance imaging : JMRI Volume: 26 ISSN: 1053-1807 ISO Abbreviation: J Magn Reson Imaging Publication Date: 2007 Jul |
Date Detail:
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Created Date: 2007-07-31 Completed Date: 2007-10-18 Revised Date: 2007-12-03 |
Medline Journal Info:
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Nlm Unique ID: 9105850 Medline TA: J Magn Reson Imaging Country: United States |
Other Details:
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Languages: eng Pagination: 172-6 Citation Subset: IM |
Copyright Information:
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Copyright 2007 Wiley-Liss, Inc. |
Affiliation:
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Department of Oral and Maxillofacial Radiology, Graduate School of Medicine and Dentistry, Okayama University, Okayama, Japan. honnda@md.okayama-u.ac.jp |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Contrast Media / administration & dosage Deglutition / physiology* Epiglottis / anatomy & histology Esophagus / anatomy & histology Feasibility Studies Female Ferric Compounds / administration & dosage Humans Hyoid Bone / anatomy & histology Larynx / anatomy & histology Magnetic Resonance Imaging / instrumentation* Male Palate / anatomy & histology Posture |
| Grant Support | |
ID/Acronym/Agency:
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1U41RR019703/RR/NCRR NIH HHS |
| Chemical | |
Reg. No./Substance:
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0/Contrast Media; 0/FerriSeltz; 0/Ferric Compounds |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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