| CT and MR imaging of the paranasal sinuses in cystic fibrosis. Correlation with microbiological and histopathological results. | |
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MedLine Citation:
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PMID: 10080727 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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PURPOSE: To compare CT and MR findings of the paranasal sinuses in patients with cystic fibrosis (CF) with microbiology and histopathology. Further, to compare microbiology from the maxillary sinuses, nasopharynx and sputum. MATERIAL AND METHODS: CT and MR imaging of the paranasal sinuses were performed in 10 CF patients. Endoscopy and maxillary sinus aspirates were obtained (guided by the MR findings) and analyzed microbiologically and histologically. Samples from the nasopharynx and sputum were analyzed microbiologically. RESULTS: CT and MR were equal in displaying the extent of soft tissue masses, which at CT were homogeneous, while MR showed heterogeneous signals. MR images also demonstrated circumscribed areas with signal void at the STIR sequence with corresponding high to intermediate signal at the T1-weighted sequence. P. aeruginosa was frequently cultured from these areas which we named the "black hole sign". Maxillary sinus cultures revealed the same bacteria as nasopharynx and sputum cultures combined. CONCLUSION: MR images were superior to CT in differentiating soft tissue masses in the paranasal sinuses in CF patients. Bacteria with potential for specialized iron uptake mechanisms were present in areas with signal void at the STIR sequence. Our hypothesis is that the MR "black hole sign" can be explained by paramagnetic properties related to bacterial agents. |
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Authors:
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H B Eggesbø; S Ringertz; O C Haanaes; S Dølvik; A Erichsen; M Stiris; F Kolmannskog |
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Publication Detail:
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Type: Comparative Study; Journal Article |
Journal Detail:
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Title: Acta radiologica (Stockholm, Sweden : 1987) Volume: 40 ISSN: 0284-1851 ISO Abbreviation: Acta Radiol Publication Date: 1999 Mar |
Date Detail:
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Created Date: 1999-04-07 Completed Date: 1999-04-07 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 8706123 Medline TA: Acta Radiol Country: DENMARK |
Other Details:
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Languages: eng Pagination: 154-62 Citation Subset: IM |
Affiliation:
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Department of Radiology, Aker University Hospital, Oslo, Norway. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Cystic Fibrosis / complications* Female Humans Magnetic Resonance Imaging Male Maxillary Sinus / microbiology, pathology Nasal Cavity / microbiology, pathology Nasal Mucosa / microbiology, pathology Nasopharynx / microbiology, pathology Paranasal Sinus Diseases / complications, diagnosis* Prospective Studies Sputum / microbiology Tomography, X-Ray Computed |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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