Extensor tendinopathy of the elbow assessed with sonoelastography: histologic correlation.
Eur Radiol
; 27(8): 3460-3466, 2017 Aug.
Article
em En
| MEDLINE
| ID: mdl-28058481
ABSTRACT
PURPOSE:
To compare agreement between conventional B-mode ultrasound (US) and compression sonoelastography (SEL) of the common extensor tendons of the elbow with histological evaluation. MATERIALS ANDMETHODS:
Twenty-six common extensor tendons were evaluated in 17 cadavers (11 females, median age 85 years and 6 males, median age 80 years). B-mode US was graded into Grade 1, homogeneous fibrillar pattern; grade 2, hypoechoic areas and/or calcifications <30%; and grade 3 > 30%. SEL was graded into Grade 1 indicated blue (hardest) to green (hard); grade 2 yellow (soft); and grade 3 red (softest). B-mode US, SEL, and a combined grading score incorporating both were compared to histological findings in 76 biopsies.RESULTS:
Histological alterations were detected in 55/76 biopsies. Both modalities showed similar results (sensitivity, specificity, and accuracy 84%, 81%, and 83% for B-mode US versus 85%, 86%, and 86% for SEL, respectively, P > 0.3). However, a combination of both resulted in significant improvement in sensitivity (96%, P < 0.02) without significant change in specificity (81%, P < 0.3), yielding an improved overall accuracy (92%).CONCLUSION:
Combined imaging of the extensor tendons with both modalities is superior to either modality alone for predicting the presence of pathologic findings on histology. KEY POINTS ⢠Combination of B-mode US and SEL proved efficiency in diagnosing lateral epicondylitis. ⢠Combination of B-mode US and SEL in lateral epicondylitis correlates to histology. ⢠Combination of both modalities provides improved sensitivity without loss of specificity.Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Tendões
/
Cotovelo de Tenista
/
Articulação do Cotovelo
/
Técnicas de Imagem por Elasticidade
Tipo de estudo:
Diagnostic_studies
/
Prognostic_studies
Limite:
Aged
/
Aged80
/
Female
/
Humans
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Male
Idioma:
En
Ano de publicação:
2017
Tipo de documento:
Article