Dynamic contrast-enhanced MR imaging in symptomatic bone stress of the pelvis and the lower extremity.
Acta Radiol
; 42(3): 277-85, 2001 May.
Article
em En
| MEDLINE
| ID: mdl-11350285
ABSTRACT
PURPOSE:
To assess the value of dynamic contrast-enhanced MR imaging in bone stress of the pelvis and the lower extremity. MATERIAL ANDMETHODS:
Thirty patients (37 reactions; aged 17-25 years, mean 20.5 years) with MR findings of 37 bone stress reactions were examined using dynamic gadolinium contrast enhancement. The enhancement was evaluated with time-intensity curves. The highest slope and maximum enhancement values were calculated and compared with the different precontrast MR imaging signs of bone stress reactions.RESULTS:
There was a significant difference in the highest slope values between the site of the bone stress reaction and the reference points. In 24 of the 37 reactions the dynamic contrast enhancement was regarded as positive. A fracture line, callus, and muscle edema were the MR imaging signs which had a significant correlation to the dynamic contrast enhancement. Neither periosteal nor marrow changes showed any significant correlation. A new MR grading system for bone stress reactions could be assessed.CONCLUSION:
Increased tissue perfusion could be seen if precontrast MR imaging revealed callus, fracture line or muscle edema surrounding the bone stress reaction.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Dor
/
Ossos Pélvicos
/
Imageamento por Ressonância Magnética
/
Exercício Físico
/
Fraturas de Estresse
/
Meios de Contraste
/
Edema
/
Ossos da Perna
Tipo de estudo:
Diagnostic_studies
/
Etiology_studies
Limite:
Adolescent
/
Adult
/
Female
/
Humans
/
Male
País/Região como assunto:
Europa
Idioma:
En
Revista:
Acta Radiol
Ano de publicação:
2001
Tipo de documento:
Article
País de afiliação:
Finlândia