Layer thickness in rotational panoramic radiography: some specific aspects.


It is customary to define the thickness of the image layer in rotational panoramic radiography along the central ray of the X-ray beam. This results in calculated values which overestimate its thickness, especially in regions where the central ray deviates markedly from orthogonality. A supplementary definition is proposed which considers layer thickness in a direction perpendicular to the central plane of the image layer. This provides values which may be more easily related to the thickness of the object being radiographed. A mathematical approximation for calculations involving the supplementary definition is described and illustrated with numerical examples.

Cite this paper

@article{Welander1989LayerTI, title={Layer thickness in rotational panoramic radiography: some specific aspects.}, author={Ulf Welander and Gunilla Tronje and William D McDavid}, journal={Dento maxillo facial radiology}, year={1989}, volume={18 3}, pages={119-24} }