| Contrast-enhanced power Doppler imaging: comparison with scintigraphic phases of revascularization of the femoral head in Legg-Calvé-Perthes disease. | |
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MedLine Citation:
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PMID: 12131443 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The authors evaluated the usefulness of an ultrasound contrast agent (SHU 508A) to help identify different scintigraphic phases of revascularization of the femoral head in children with Legg-Calvé-Perthes (LCP) disease. Eighteen unenhanced and contrast-enhanced power Doppler images and scintigrams of the pathologic hip in 18 children with LCP disease were compared. The scintigraphic stages of Conway's classification for LCP disease (stage A, recanalization; stage B, neovascularization) were compared with the degree of vascularity and mean peak enhancement ratios obtained from analysis of Doppler sonograms. Qualitatively, the patient's age (< or = or >7 years old) at the time of examination had a significant effect on the degree of vascularity visualized on postcontrast ultrasound images according to the scintigraphic stages. Quantitatively, there were no differences for overall mean peak enhancement ratios between stages A and B. Power Doppler ultrasound increased visualization of Doppler signals significantly but did not help in differentiating scintigraphic phases. |
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Authors:
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Andrea S Doria; Roberto Guarniero; Rui M De Godoy Jr; Carlos Buchpiguel; Marcelo Modena; Fabiano G Cunha; Carlos Luzo; Laszlo J Molnar; Marcelo T Sapienza; Giovanni G Cerri |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Journal of pediatric orthopedics Volume: 22 ISSN: 0271-6798 ISO Abbreviation: J Pediatr Orthop Publication Date: 2002 Jul-Aug |
Date Detail:
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Created Date: 2002-07-19 Completed Date: 2002-09-04 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 8109053 Medline TA: J Pediatr Orthop Country: United States |
Other Details:
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Languages: eng Pagination: 471-8 Citation Subset: IM |
Affiliation:
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University of São Paulo, São Paulo, Brazil. andrea.doria@sickkids.ca |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Child Child, Preschool Contrast Media Female Femur Head / blood supply* Humans Legg-Perthes Disease / radionuclide imaging*, ultrasonography* Male Neovascularization, Physiologic / physiology* Probability Radiographic Image Enhancement / methods* Radionuclide Imaging / methods Sensitivity and Specificity Severity of Illness Index Statistics, Nonparametric Technetium / diagnostic use Ultrasonography, Doppler, Color / methods* |
| Chemical | |
Reg. No./Substance:
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0/Contrast Media; 7440-26-8/Technetium |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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