Related Experiment Video
Updated: Jun 26, 2026

High Resolution 3D Imaging of Ex-Vivo Biological Samples by Micro CT
Published on: June 21, 2011
Volumetric tomography - a new tomographic technique for panoramic units
A Cederlund1, M Kalke, U Welander
1Department of Oral Radiology, Eastman Institute, Stockholm, Sweden. andreas.cederlund@socialstyrelsen.se
Objectives:
To introduce a new three-dimensional dental imaging technique named volumetric tomography (VT).
Methods:
The new VT imaging method utilizes an iterative frequency-based reconstruction technique. With iterative algorithms each voxel value is defined multiple times during reconstruction. Computation time is therefore relatively lengthy. However, multicore processors and graphic board programming reduce the reconstruction time, making it possible to utilize this iterative reconstruction technique in clinical practice. The new VT technique is an add-on to a standard panoramic unit (Orthopantomograph OP 200 D; Instrumentarium Oy, Tuusula, Finland). Unit enhancements include a device for patient positioning and additional software. Preliminary clinical examinations have been performed.
Results:
Examinations demonstrated that the new VT technique gives satisfactory volumetric patient data from which tomographs may be derived for different clinical applications.
Conclusions:
The new VT method may be employed when tomographic examinations are required for dental clinical work.
More Related Videos
Related Concept Videos
Computed Tomography
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...
Imaging Studies III: Computed Tomography
Electron Microscope Tomography and Single-particle Reconstruction
Electron Tomography
Electron tomography can be performed either in TEM or STEM (scanning transmission...
Positron Emission Tomography
One of the main requirements of a PET scan is a positron-emitting radioisotope, which is produced in a cyclotron and then attached to a substance used by the part of the body being...
Imaging Studies I: CT and MRI
Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...
Radiological Investigation II: MRI and Ventilation Perfusion Scan
Magnetic Resonance Imaging (MRI) and Ventilation Perfusion Scans are two radiological investigations that offer detailed diagnostic images of the body, particularly lung structures.
MRI
MRI uses magnetic fields and radiofrequency signals to distinguish between normal and abnormal tissues. This technology provides a more detailed diagnostic image than CT scans, enabling it to characterize pulmonary nodules, stage bronchogenic carcinoma, and evaluate inflammatory activity in...

