| Evaluation of the necessity of contrast in the follow-up MRI of schwannomas. | |
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MedLine Citation:
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PMID: 20981645 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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PURPOSE The purpose of our study was to determine whether gadolinium is necessary in follow-up MRIs for evaluating vestibular schwannomas. MATERIALS AND METHODS A retrospective analysis of 49 magnetic resonance imaging (MRI) examinations of 20 vestibular schwannoma patients was performed. Patients received between 1 and 4 follow-up scans, and the mean follow-up period was 15.3 months. Two radiologists independently reviewed the initial and follow-up MRI examinations. Tumor measurements obtained using the constructive interference in steady state (CISS) and contrastenhanced T1-weighted (T1W) sequences were compared. Both radiologists used both of the sequences to analyze any differences in the tumor sizes measured in consecutive MRI scans. RESULTS The linear anteroposterior and transverse tumor diameter measurements obtained by the two observers using both sequences were strongly correlated (r = 0.962-0.987, P < 0.001). The observers agreed to a very high degree when detecting changes in the tumor size using the CISS sequence (κ = 0.902, P = 0.0001), whereas the agreement with the contrast-enhanced T1W sequence was good but not as good (κ = 0.706, P = 0.001). CONCLUSION CISS, as a contrast-free sequence, may be an option in regular follow-up MRIs of vestibular schwannomas. |
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Authors:
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Selen Bayraktaroğlu; Elçin Pabuçcu; Naim Ceylan; Soner Duman; Recep Savaş; Hüdaver Alper |
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Publication Detail:
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Type: Journal Article Date: 2010-11-28 |
Journal Detail:
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Title: Diagnostic and interventional radiology (Ankara, Turkey) Volume: 17 ISSN: 1305-3612 ISO Abbreviation: Diagn Interv Radiol Publication Date: 2011 Sep |
Date Detail:
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Created Date: 2011-08-25 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101241152 Medline TA: Diagn Interv Radiol Country: Turkey |
Other Details:
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Languages: eng Pagination: 209-15 Citation Subset: IM |
Affiliation:
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From the Department of Radiology, Ege University Schol of Medicine, İzmir, Turkey. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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