| Real-time, cine magnetic resonance imaging for evaluation of the pediatric airway. | |
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MedLine Citation:
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PMID: 11802023 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND: Standard magnetic resonance imaging (MRI) and computed tomographic (CT) modalities are limited in their ability to image dynamic organs. New real-time, dynamic, cine magnetic resonance imaging (CMRI) techniques have the potential to image moving structures. OBJECTIVE: We therefore investigated the feasibility of using CMRI techniques to dynamically image the human airway, to assess laryngeal and tracheal patency and function. METHODS: A cohort of 10 pediatric patients, 10 adult patients, and 10 normal volunteers underwent routine static MRI, as well as CMRI using a Siemens 1.5 T Vision system (Siemens, Erlangen, Germany). Patients also underwent endoscopic evaluation. Cine axial, coronal, and sagittal sequences of the larynx and trachea were obtained during quiet respiration, as well as during a variety of provocative maneuvers. RESULTS: CMRI readily demonstrated normal vocal cord mobility and tracheal stability in normal volunteers. Abnormal vocal mobility was easily appreciated using the CMRI imaging system. Similarly, dynamic effects of tracheomalacia were clearly demonstrated using CMRI. Dynamic extrinsic tracheal compression resulting from mass lesions or anomalous vasculature was also visualized using CMRI. CONCLUSIONS: Cine MRI of the airway has the potential to provide novel data regarding laryngeal and tracheal patency and function. This evolving modality may serve as a valuable adjunct to static MR and CT imaging, as well as endoscopy, in the assessment of the airway. |
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Authors:
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R A Faust; K B Remley; F L Rimell |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: The Laryngoscope Volume: 111 ISSN: 0023-852X ISO Abbreviation: Laryngoscope Publication Date: 2001 Dec |
Date Detail:
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Created Date: 2002-01-21 Completed Date: 2002-02-07 Revised Date: 2004-11-17 |
Medline Journal Info:
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Nlm Unique ID: 8607378 Medline TA: Laryngoscope Country: United States |
Other Details:
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Languages: eng Pagination: 2187-90 Citation Subset: IM |
Affiliation:
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Department of Otolaryngology--Head and Neck Surgery, University of Virginia, Charlottesville, Virginia 22908-9713, USA. rfaust@virginia.edu |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adolescent Airway Obstruction / diagnosis, etiology, physiopathology Child Child, Preschool Cohort Studies Feasibility Studies Female Humans Infant Larynx / pathology, physiology* Magnetic Resonance Imaging, Cine* Male Pulmonary Ventilation / physiology Sensitivity and Specificity Trachea / pathology, physiology* Tracheal Stenosis / diagnosis, etiology, physiopathology Vocal Cords / pathology, physiology* |
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