Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Imaging Studies III: Computed Tomography01:27

Imaging Studies III: Computed Tomography

532
DefinitionComputed Tomography (CT) of the genitourinary (GU) tract is a non-invasive imaging modality that utilizes X-rays and computer processing to generate detailed cross-sectional images of the urinary system, encompassing the kidneys, ureters, bladder, and adjacent structures such as the adrenal glands.PurposeCT scans of the GU tract serve several diagnostic and therapeutic purposes, including:Diagnosis of Urinary Tract Diseases: Detects kidney stones, tumors, cysts, and congenital...
532
Computed Tomography01:10

Computed Tomography

9.2K
Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
9.2K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Total lower lip and chin replantation following a trampoline accident: Rescue surgery with intensive leech therapy.

Journal of stomatology, oral and maxillofacial surgery·2026
Same author

Between unity and disparity: current treatment protocols for common orofacial clefts in European expert centres.

International journal of oral and maxillofacial surgery·2024
Same author

Innovative scientific illustration training for surgery residents in Paris.

Journal of stomatology, oral and maxillofacial surgery·2024
Same author

[Development and growth of the forehead].

Annales de chirurgie plastique et esthetique·2024
Same author

[Forehead shape in "Toulouse" artificial skull deformations].

Annales de chirurgie plastique et esthetique·2024
Same author

[Forehead in craniosynostoses].

Annales de chirurgie plastique et esthetique·2024

Related Experiment Video

Updated: Mar 9, 2026

Author Spotlight: Three-Dimensional Cephalometric Landmark Annotation Demonstration on Human Cone Beam Computed Tomography Scans
10:23

Author Spotlight: Three-Dimensional Cephalometric Landmark Annotation Demonstration on Human Cone Beam Computed Tomography Scans

Published on: September 8, 2023

3.8K

Reproducibility of three-dimensional posterior cranial base angles using low-dose computed tomography.

R Olszewski1, L Frison2, N Schoenarts3

  • 1Department of Oral and Maxillofacial Surgery, Cliniques Universitaires Saint-Luc, Université catholique de Louvain, Av. Hippocrate 10, 1200, Brussels, Belgium. Raphael.olszewski@uclouvain.be.

Clinical Oral Investigations
|December 23, 2016
PubMed
Summary

The study identified the R4 angle as the most reproducible three-dimensional (3D) posterior cranial base angle. This finding is crucial for accurate craniofacial development assessment in orthodontics and orthognathic surgery.

Keywords:
CephalometryComputed tomographyCranial baseCranial base anglesThree-dimensional

More Related Videos

A Postoperative Evaluation Guideline for Computer-Assisted Reconstruction of the Mandible
10:42

A Postoperative Evaluation Guideline for Computer-Assisted Reconstruction of the Mandible

Published on: January 28, 2020

7.1K
Author Spotlight: Advancing CBCT and Digital Dental Image Integration with AI-Assisted Digitization
05:49

Author Spotlight: Advancing CBCT and Digital Dental Image Integration with AI-Assisted Digitization

Published on: February 23, 2024

1.6K

Related Experiment Videos

Last Updated: Mar 9, 2026

Author Spotlight: Three-Dimensional Cephalometric Landmark Annotation Demonstration on Human Cone Beam Computed Tomography Scans
10:23

Author Spotlight: Three-Dimensional Cephalometric Landmark Annotation Demonstration on Human Cone Beam Computed Tomography Scans

Published on: September 8, 2023

3.8K
A Postoperative Evaluation Guideline for Computer-Assisted Reconstruction of the Mandible
10:42

A Postoperative Evaluation Guideline for Computer-Assisted Reconstruction of the Mandible

Published on: January 28, 2020

7.1K
Author Spotlight: Advancing CBCT and Digital Dental Image Integration with AI-Assisted Digitization
05:49

Author Spotlight: Advancing CBCT and Digital Dental Image Integration with AI-Assisted Digitization

Published on: February 23, 2024

1.6K

Area of Science:

  • Craniofacial anatomy and development
  • 3D imaging and cephalometry
  • Orthognathic surgery and orthodontics

Background:

  • The posterior cranial base angle is vital for craniofacial development.
  • Reproducibility of 3D posterior cranial base angle measurements is critical for clinical applications.
  • Existing 2D cephalometric angles have limitations when translated to 3D.

Purpose of the Study:

  • To determine the most reproducible three-dimensional (3D) posterior cranial base angles.
  • To compare the reproducibility of 12 different 3D posterior cranial base angles.
  • To evaluate angles derived from 2D cephalometry and new anthropological concepts.

Main Methods:

  • Retrospective analysis of low-dose computed tomography (CT) data from 20 adult patients.
  • Two independent observers identified 3D landmarks twice using Maxilim software.
  • Performed 3D cephalometric analyses to measure 12 posterior cranial base angles.

Main Results:

  • Inter-observer correlation coefficients varied significantly among the tested angles.
  • The 3D angle R4 demonstrated the highest reproducibility (correlation coefficient of 0.827).
  • The 3D angle R2 showed the lowest reproducibility (correlation coefficient of -0.177).

Conclusions:

  • The null hypothesis of equal reproducibility was rejected.
  • The 3D angle R4, utilizing specific landmarks (basion, superior optic, crista galli inferior), is the most reproducible.
  • The R4 angle is recommended as a reference for future 3D cephalometry in orthodontics and orthognathic surgery.