| Contrast enhancement of the inner ear in magnetic resonance images taken at 10 minutes or 4 hours after intravenous gadolinium injection. | |
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MedLine Citation:
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PMID: 22201230 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Abstract Conclusion. Contrast enhancement of the inner ear by three-dimensional fluid-attenuated inversion recovery magnetic resonance imaging (3D-FLAIR MRI) taken 4 h after intravenous gadolinium (Gd) injection was better than when taken at 10 min. Using heavily T2-weighted 3D-FLAIR MRI, visualization of endolymphatic hydrops (EH) was possible in the vestibule and the cochlea after a standard intravenous dose of Gd. Objectives. To define a suitable time point for imaging Gd uptake in the inner ear acquired with heavily T2-weighted 3D-FLAIR MRI after standard intravenous Gd administration. Methods: Using a 3 Tesla MRI unit, heavily T2-weighted 3D-FLAIR MRI images were taken twice at approximately 10 min (conventional timing) and 4 h after intravenous gadodiamide (0.1 mmol/kg) injection in 10 patients with inner ear diseases including Ménière's disease. Results: The 4 h delay increased Gd enhancement of the 3D-FLAIR MRI images of the perilymphatic space in both symptomatic and asymptomatic ears. The increase in Gd enhancement was greater in symptomatic than in asymptomatic ears. Using this heavily T2-weighted 3D-FLAIR technique, EH was observed in both the cochlea and vestibule in images taken 4 h after the intravenous Gd injection. |
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Authors:
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Rui Sano; Masaaki Teranishi; Masahiro Yamazaki; Haruo Isoda; Shinji Naganawa; Michihiko Sone; Mariko Hiramatsu; Tadao Yoshida; Hirokazu Suzuki; Tsutomu Nakashima |
Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-12-27 |
Journal Detail:
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Title: Acta oto-laryngologica Volume: - ISSN: 1651-2251 ISO Abbreviation: - Publication Date: 2011 Dec |
Date Detail:
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Created Date: 2011-12-28 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0370354 Medline TA: Acta Otolaryngol Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Department of Otorhinolaryngology. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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