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Diagnostic accuracy of classical radiological measurements for basilar invagination of type B at MRI.
Nascimento, José J C; Neto, Eulâmpio J S; Mello-Junior, Carlos F; Valença, Marcelo M; Araújo-Neto, Severino A; Diniz, Paula R B.
Afiliação
  • Nascimento JJC; Postgraduate Program in Neuropsychiatry, Federal University of Pernambuco, Av. Prof. Moraes Rego, 1235, University City, Recife, PE, CEP: 50670-901, Brazil. josejailson64@gmail.com.
  • Neto EJS; Department of Morphology, Federal University of Paraíba, João Pessoa, Brazil.
  • Mello-Junior CF; Diagnostic imaging, Internal Medicine, Federal University of Paraíba, João Pessoa, Brazil.
  • Valença MM; Postgraduate Program in Neuropsychiatry, Federal University of Pernambuco, Av. Prof. Moraes Rego, 1235, University City, Recife, PE, CEP: 50670-901, Brazil.
  • Araújo-Neto SA; Neurology and Neurosurgery Unit, Clinics Hospital, Federal University of Pernambuco, Recife, Brazil.
  • Diniz PRB; Internal Medicine Department, Clinics Hospital, Federal University of Pernambuco, Recife, Brazil.
Eur Spine J ; 28(2): 345-352, 2019 02.
Article em En | MEDLINE | ID: mdl-30498960
OBJECTIVE: To evaluate the diagnostic accuracy of classical measurements for basilar invagination (BI) of type B at MRI. METHODS: This study used head MRIs from 31 participants with BI type B and 96 controls. The radiological criterion for BI was the odontoid process invagination using the obex as reference. It based on the independent prospective reading of two neuroradiologists. Concordance between the two neuroradiologists was analysed through the KAPPA index, and the discrepancy was resolved in a consensus meeting. A third examiner measured in two occasions (double blind) the distance of the odontoid apex to Chamberlain's line (DOCL) and McGregor's line (DOMG), clivus canal angle (CCA), Welcker's basal angle (WBA), and Boogaard's angle (BOA). Intra-examiner reproducibility of the measurements was evaluated with the intraclass correlation coefficient and the diagnostic accuracy by ROC curve. All analyses were at 95% confidence interval. RESULTS: Agreement between the two neuroradiologists was statistically relevant (KAPPA = .91; P = .0001). The intra-examiner reproducibilities were .98 (DOCL), .97 (DOMG), .96 (CCA), .94 (WBA), and .95 (BOA) (P < .05). The areas under the ROC curve were .963 (DOCL), .940 (DOMG), .880 (CCA), .867 (WBA), and .951 (BOA) (P < .05). The cut-off criteria were ≥ 7 mm (DOCL), ≥ 8 mm (DOMG), ≤ 145° (CCA), ≥ 142° (WBA), and ≥ 136° (BOA). The diagnostic accuracies were .904 (DOCL), .870 (DOMG), .844 (CCA), .810 (WBA), and .899 (BOA). CONCLUSION: The DOCL and BOA presented the highest diagnostic accuracy for BI type B. These slides can be retrieved under Electronic Supplementary Material.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Platibasia / Imageamento por Ressonância Magnética Tipo de estudo: Clinical_trials / Diagnostic_studies / Prognostic_studies Limite: Humans Idioma: En Revista: Eur Spine J Assunto da revista: ORTOPEDIA Ano de publicação: 2019 Tipo de documento: Article País de afiliação: Brasil País de publicação: Alemanha
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Platibasia / Imageamento por Ressonância Magnética Tipo de estudo: Clinical_trials / Diagnostic_studies / Prognostic_studies Limite: Humans Idioma: En Revista: Eur Spine J Assunto da revista: ORTOPEDIA Ano de publicação: 2019 Tipo de documento: Article País de afiliação: Brasil País de publicação: Alemanha