Semi-quantitative strain elastography may facilitate pre-surgical prediction of mandibular lymph nodes malignancy in dogs
Journal of Veterinary Science
;
: e62-2019.
Artigo
em Inglês
| WPRIM
| ID: wpr-758959
ABSTRACT
Evaluation of mandibular lymph nodes in a patient with head and neck cancer is important for stage determination and prognosis development, and, in human medicine, the use of sonoelastography for differentiating between non-metastatic and metastatic lymph nodes has been reported. Our prospective, cross-sectional study aimed to evaluate the diagnostic performance of strain elastography and to determine elastographic cut-off values for predicting malignancy. Sixty-six mandibular lymph nodes were included (clinical healthy, n = 45; non-metastatic, n = 8; and metastatic, n = 13). Elastographic images were evaluated qualitatively (elastographic pattern) and semi-quantitatively (mean hue histogram and stiffness area ratios). Elastographic patterns were classified as grades 1 to 4, according to the percentage of high elasticity determined by visualization. The mean hue histogram was defined based on as the mean pixel color values within the lymph node. Stiffness area ratios were determined by computer program analysis of the stiff area. Among the criteria, receiver operating characteristic curve analyses revealed cut-off values for the prediction of malignancy of 92.26 for mean hue histogram (sensitivity 100%, specificity 92%), and 0.17 for stiffness area ratios (sensitivity 86%, specificity of 100%). Reproducibility and repeatability were excellent. In conclusion, semi-quantitative evaluation via strain elastography holds potential for predicting lymph node malignancy.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Prognóstico
/
Estudos Transversais
/
Estudos Prospectivos
/
Curva ROC
/
Sensibilidade e Especificidade
/
Elasticidade
/
Técnicas de Imagem por Elasticidade
/
Neoplasias de Cabeça e Pescoço
/
Linfonodos
Tipo de estudo:
Estudo diagnóstico
/
Estudo observacional
/
Estudo de prevalência
/
Estudo prognóstico
/
Fatores de risco
Limite:
Animais
/
Humanos
Idioma:
Inglês
Revista:
Journal of Veterinary Science
Ano de publicação:
2019
Tipo de documento:
Artigo
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