| Contrast-enhanced ultrasonographic visualization of gonadal torsion. | |
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MedLine Citation:
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PMID: 9315168 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The purpose of this study was to investigate the effect of use of intravenous ultrasonographic contrast agent in the diagnosis of gonadal torsion in an animal model. After examination of perfusion of normal gonads in male and female dogs, torsion was produced and maintained mechanically. Presence and pattern of blood flow was then reassessed before and after administration of varying doses of perfluorocarbon-filled microsphere intravenous contrast agent. Modes of examination included gray scale, color flow, color power, and spectral analysis using a transducer placed directly on the surgically exposed gonads. Although no enhancement was perceptible on gray scale images, color and spectral Doppler signals were significantly stronger after injection of contrast agent in both normal and rotated gonads. Perfusion asymmetry was more obvious. Some residual flow was seen in partially rotated testes, and absence of flow was documented in both partially and fully rotated ovaries. Use of intravenous contrast medium improves demonstration of altered flow patterns in ischemic gonads, allowing more confident diagnosis. |
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Authors:
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J M Brown; K J Taylor; J L Alderman; C Quedens-Case; Y Greener |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine Volume: 16 ISSN: 0278-4297 ISO Abbreviation: J Ultrasound Med Publication Date: 1997 May |
Date Detail:
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Created Date: 1997-10-23 Completed Date: 1997-10-23 Revised Date: 2007-11-15 |
Medline Journal Info:
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Nlm Unique ID: 8211547 Medline TA: J Ultrasound Med Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 309-16 Citation Subset: IM |
Affiliation:
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Department of Diagnostic Radiology, Yale University School of Medicine, New Haven, CT 06520-8042, USA. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Contrast Media Disease Models, Animal Dogs Female Image Enhancement / methods* Male Ovarian Diseases / ultrasonography* Testicular Diseases / ultrasonography* Torsion Abnormality / ultrasonography Ultrasonography, Doppler, Color Ultrasonography, Doppler, Duplex |
| Chemical | |
Reg. No./Substance:
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0/Contrast Media |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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