| Power Doppler evaluation of joint effusions: investigation in a rabbit model. | |
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MedLine Citation:
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PMID: 10415191 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVE: To study the power Doppler findings of septic arthritis and noninfectious synovitis in an animal model. MATERIALS AND METHODS: The right knees of 10 rabbits were inoculated with an aqueous suspension of Staphylococcus aureus. The right knees of 5 rabbits were injected with talc suspension. The right knees of 5 rabbits were injected with saline. All 20 left knees were injected with saline. Serial power Doppler images were obtained using constant-imaging parameters. Images were reviewed by blinded observers who assessed for increased power Doppler signal. RESULTS: All 10 knees inoculated with S. aureus developed septic arthritis. Each infected rabbit knee demonstrated increased signal on power Doppler on at least one examination, ranging from 1-6 days after inoculation. Only 23 of 45 examinations of infected knees were unequivocally positive by power Doppler on examinations performed 1 to 6 days after inoculation. No knee with talc synovitis demonstrated increased power Doppler signal. No control knee demonstrated increased power Doppler signal. CONCLUSION: Increased power Doppler signal may be seen with septic arthritis; however, its intensity and timing may vary from subject to subject. A normal power Doppler examination does not exclude septic arthritis. |
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Authors:
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P J Strouse; M A DiPietro; E L Teo; K Doi; C E Chrisp |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Pediatric radiology Volume: 29 ISSN: 0301-0449 ISO Abbreviation: Pediatr Radiol Publication Date: 1999 Aug |
Date Detail:
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Created Date: 1999-09-30 Completed Date: 1999-09-30 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0365332 Medline TA: Pediatr Radiol Country: GERMANY |
Other Details:
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Languages: eng Pagination: 617-23 Citation Subset: IM |
Affiliation:
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Division of Pediatric Radiology, C. S. Mott Children's Hospital, University of Michigan Medical Center, 1500 East Medical Center Drive, Ann Arbor, MI 48109-0252, USA. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Arthritis, Infectious / ultrasonography* Disease Models, Animal Exudates and Transudates Image Processing, Computer-Assisted Knee / microbiology, pathology Rabbits Sensitivity and Specificity Staphylococcal Infections / ultrasonography* Staphylococcus aureus Synovial Membrane / microbiology, pathology* Synovitis / chemically induced, microbiology, ultrasonography* Talc Ultrasonography, Doppler* |
| Chemical | |
Reg. No./Substance:
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14807-96-6/Talc |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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