ArticleEuropean spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society2019
Diagnostic accuracy of classical radiological measurements for basilar invagination of type B at MRI.
Article in European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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10 citing papers in PubMed.
- Diagnostic Performance and Reproducibility of Odontoid Retroflexion Angle and Posterior Basion-C2 Line in Type II Basilar Invagination.Medeniyet medical journal · 2026Article
- The significant differences between types 1 and 2 basilar invagination - a case- control study based on the sphenoid bone.Neurosurgical review · 2025Article
- The role of sphenoid bone in basilar invagination pathophysiology.Neurosurgical review · 2023Article
- Mobility Assessment Using Multi-Positional MRI in Children with Cranio-Vertebral Junction Anomalies.Journal of clinical medicine · 2023Article
- Measuring the shape and dimensions of normal the bony structures in the craniovertebral junction from computed tomography images of the pediatric age group.Ulusal travma ve acil cerrahi dergisi = Turkish journal of trauma & emergency surgery : TJTES · 2022Article
- Commentary on "A Universal Craniometric Index for Establishing the Diagnosis of Basilar Invagination".Neurospine · 2021Article
- Anatomical evaluation of the craniovertebral junction on cone-beam computed tomography images.Surgical and radiologic anatomy : SRA · 2020Article
- Agenesis of the posterior arch of the atlas and complex alterations of the craniovertebral junction: A case report.Radiology case reports · 2019Article
- Craniometric parameters for the evaluation of platybasia and basilar invagination on magnetic resonance imaging: a reproducibility study.Radiologia brasileiraArticle
- Impact of imaging modality, age, and gender on craniocervical junction angles in adults without structural pathology.Journal of craniovertebral junction & spineArticle
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6 authors.
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Abstract
objectiveTo evaluate the diagnostic accuracy of classical measurements for basilar invagination (BI) of type B at MRI.
methodsThis 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.
resultsAgreement 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).
conclusionThe 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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