Related Experiment Video
Updated: May 28, 2026
Three-Dimensional Cephalometric Landmark Annotation Demonstration on Human Cone Beam Computed Tomography Scans
Published on: September 8, 2023
[Cone beam 3D sialography: preliminary study]
A Varoquaux1, M Larribe, C Chossegros
1Services de radiologie et de chirurgie maxillofaciale, CHU de la Timone, 264 rue Saint-Pierre, Marseille cedex 5, France. arthur.varoquaux@ap-hm.fr
Introduction:
Stones, stenosis and inflammatory lesions are the main causes of mealtime syndrome. The aim of paraclinical exam is to find the cause of these obstructive symptoms. Ultrasound is often sufficient to confirm the lithiasic origin of salivary gland swelling. Non-lithiasic salivary obstructions are more difficult to diagnose. We studied the feasibility and quality of a new medical imaging device: three-dimensional (3D) sialography using the technique of cone beam with flat panel (CPCT).
Patients And Methods:
Five patients were included, referred for diagnostic management of non-lithiasic salivary gland parotid colic. It was performed for each patient in the angiography room, conventional sialography and 3D CPCT. Images were compared to conventional sialography.
Results:
None of catheterization failure or side effects were observed in five patients. 3D CPCT sialography enabled to view gland ducts until their fifth or sixth division. Compared to conventional sialography, 3D CPCT improves signal and contrast to noise ratio.
Discussion:
This technique allows an anatomic resolution and signal/noise ratio unmatched. It also allows to reduce metallics artefacts. Its main drawback is those associated with ductal catheterization, exposure to ionizing radiation and potential allergy to iodinated contrast agents.
