Dry skull positioning device for extra-oral radiology and cone-beam CT

Beaini, Thiago Leite; Dias, Paulo Eduardo Miamoto; Melani, Rodolfo Francisco Haltenhoff

doi:10.1007/s00414-013-0905-9

Cited by 4 publications

(2 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Risk of improper positioning of patients is high in extraoral radiographies. The accuracy of CBCT is less commonly affected by erroneous patient positioning (4)(5)(6).…”

Section: Introductionmentioning

confidence: 99%

Effect of Head Position on Maxillofacial Transverse Measurements Made on the Skull and Cone Beam Computed Tomography Scans

et al. 2016

View full text Add to dashboard Cite

Article Incorrect patient positioning and the resultant image distortion occur in many radiographic examinations. This study aimed to assess the effect of tilting, rotation and tipping of the head on the accuracy of maxillofacial transverse measurements made on cone beam computed tomography (CBCT) scans. The CBCT scans were obtained in central position of 10 dry human skulls. Using three-dimensional (3D) Dolphin software, six positions namely 10° and 20° tilts, rotations and tips were reconstructed of central position. Transverse distances between landmarks were measured on 3D scans and the skulls. The intraclass correlation coefficient (ICC) and the Bland-Altman plot were used to compare the mean values measured by the two observers. For most landmarks, no significant differences were noted between the mean transverse distances measured in the six positions and those measured in central position on 3D scans (p>0.005). In conclusion, all measurements of transverse distances made on 3D scans in different positions were underestimated compared to the actual values measured on the skull.

show abstract

“…Risk of improper positioning of patients is high in extraoral radiographies. The accuracy of CBCT is less commonly affected by erroneous patient positioning (4)(5)(6).…”

Section: Introductionmentioning

confidence: 99%

Effect of Head Position on Maxillofacial Transverse Measurements Made on the Skull and Cone Beam Computed Tomography Scans

et al. 2016

View full text Add to dashboard Cite

show abstract

“…4,5,13,14 Also, positioning dry skulls for examination should not represent trouble to experienced personnel. 32 The MeshLab software is open-source and designed for handling and building 3D objects and not for human identification, but its ability of aligning objects of similar size and shape suits this specific purpose with outstanding results. InVesalius ® , on the other hand, has the segmentation and exportation of volumetric models from anatomical structures as one of its main purposes.…”

Section: Discussionmentioning

confidence: 99%