Results: 3

Basilar invagination associated with chiari malformation type I: A literature review

Clinics; 74 (), 2019
Basilar invagination (BI) and Chiari malformation type I (CM-I) are very important anomalies that introduce instability and compression in the occipitocervical transition region and have complex clinical characteristics. These anomalies vary according to the affected structures. The present study revises...

Cranio-vertebral transition assessment by magnetic resonance imaging in a sample of a northeast Brazilian population

Arq. neuropsiquiatr; 75 (7), 2017
ABSTRACT Platybasia and basilar invagination are important alterations of the cranial-vertebral transition. Neuroimaging-based platybasia parameters include the Welcker basal angle, distance between the apex of the odontoid and Chamberlain's line, and the clivus-canal angle. This study aimed to measure a...

3-D simulation of posterior fossa reduction in Chiari I

Arq. neuropsiquiatr; 74 (5), 2016
ABSTRACT We proposed a 3D model to evaluate the role of platybasia and clivus length in the development of Chiari I (CI). Using a computer aided design software, two DICOM files of a normal CT scan and MR were used to simulate different clivus lengths (CL) and also different basal angles (BA). The final ...