Generating spectral dental panoramic images from computed tomography volumes

Background: Spectral panoramic X-ray imaging is an emerging imaging modality with possible clinical benefits. With preliminary experimental results demonstrated, a method enabling verification and cross-comparison would increase confidence in the experimental results. Purpose: To generate synthetic...

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Bibliographic Details
Published inarXiv.org
Main Authors Somerkivi, Villseveri, Kolb, Anna, Sellerer, Thorsten, Berthe, Daniel, York Haemisch, Pantsar, Tuomas, Lohman, Henrik, Pfeiffer, Franz
Format Paper
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 17.05.2023
Subjects
Anthropomorphism
Computed tomography
Image acquisition
Medical imaging
Soft tissues
X ray imagery
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Summary:Background: Spectral panoramic X-ray imaging is an emerging imaging modality with possible clinical benefits. With preliminary experimental results demonstrated, a method enabling verification and cross-comparison would increase confidence in the experimental results. Purpose: To generate synthetic spectral panoramic images and compare the synthetic images against experimental spectral panoramic images Methods: A simulation framework for generating synthetic spectral panoramic images from CT volumes is described. A cone beam CT scan of an anthropomorphic head phantom is used as input. An experimental spectral panoramic image of the same phantom is acquired. The framework also includes a tool for estimating anatomical noise. Results: The output of the framework of an anthropomorphic head phantom is compared against an experimental spectral panoramic image of the same phantom. The synthetic and experimental spectral panoramic images resemble each other considerably, especially the bone features. In the soft tissue images there are some differences, which are a result of the differences on how each image is generated. Finally, anatomical noise is revealed to be small, with the spread in the values in the order of 1 cm for the soft tissue and 1 mm for the cortical bone through most of the image. Conclusions: It is demonstrated that generating synthetic spectral panoramic images from CT volumes is possible. The synthetic images have many similarities with the experimental results, increasing the confidence in the correctness of the information contained within experimental spectral panoramic images and indicating that the synthetic images could be useful in further research.
ISSN:2331-8422