WebDownload scientific diagram Pang’s occipital condyle-C1 interval (CCI) measured in the coronal reconstruction of a thin-sliced CT of the craniocervical junction, CCI is 6.25 mm on the right ... Web28 de dez. de 2016 · Harris and colleagues defined the normal basion-dens interval (or measurement from the basion to the tip of the dens) on a lateral radiograph of the cervical spine, as less than 12 mm [40, 41] (Fig. 2d).Although this measurement was performed in adults and children over 13 years of age, it is generally used in our clinical practice for …

Reassessment of the Craniocervical Junction

WebEach patient underwent measurement of the occipital condyle-C1 interval (CCI), pB-C2, atlantodental interval (ADI), basion-dens interval (BDI), basion-opisthion diameter (BOD), basion-axial ... throughout childhood, with an ICC of fair to good (range 0.413-0.912). Notably, CCI decreases continuously on coronal CT scans, whereas on ... Webposterior one third of the dens (Fig. 7). The Powers ratio is calculated by dividing the distance between the basion and posterior arch of C1 by the distance between the opis-thion and anterior arch of C1. A line along the posterior dens and the perpendicular measurement from that line to the basion de - termines the basion axial interval. The ba- optic 2000 molsheim

Atlanto-Occipital Dislocation (Internal Decapitation)

WebConventional radiographic and CT findings in craniocervical distraction injuries include: Prevertebral soft-tissue swelling. Basion-dens interval > 12 mm. Basion–posterior axial line interval > 12 mm anteriorly or >4 mm posteriorly. Abnormal power’s ratio (used to diagnose occipitocervical dislocation) WebBAI is from basion to line representing posterior axial line (line tangent to posterior surface of axis, C2). Both should be less than 12 mm. AADI is from anterior ring of atlas (C1) to dens. PADI ... WebFig. 2A —Basion-dens interval (BDI). Midsagittal MDCT images of craniocervical junction show basion-dens interval as distance from most inferior portion of basion to closest … porthleven place fishermead