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Background <p>This study evaluates the potential of routine clinical photon-counting computed tomography (PCCT) of the cervical spine for opportunistic dental diagnostics.</p> Methods <p>Thirty-three patients undergoing routine PCCT were included in this study, with imaging performed at an average dose of 13 mGy. Images were reconstructed to a voxel size of 156&#xa0;μm and a slice thickness of 0.4 mm. Quantitative image quality was assessed using the contrast-to-noise ratio (CNR) between dental structures, while qualitative assessment of structures like enamel, dentine, root canals, and cortical bone was conducted by two experienced readers using a five-point scale.</p> Results <p>The inter-reader reproducibility and intra-class correlation coefficient were excellent (all &gt; 0.947). CNRs ranged from 1.6 to 6.1 for all relevant contrasts, and qualitative scores were excellent for all dental structures. Dental pathologies were detected in a significant portion of patients: caries-induced decay in 9 patients (27%) at 26 sites, apical lesions in 12 patients (36%) at 26 sites, and alveolar bone loss in 12 patients (36%) at 12 sites. At least one pathology was present in 23 patients (70%).</p> Conclusions <p>PCCT offers potential for opportunistic dental diagnostics, providing earlier detection of dental issues and potentially improving overall dental care outcomes.</p>

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Feasibility of opportunistic dental diagnostics in routine photon-counting CT examinations of the cervical spine

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年1月10日

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  • Stefan Sawall,
  • Joscha Maier,
  • Sinan Sen,
  • Holger Gehrig,
  • Ti-Sun Kim,
  • Christian H. Ziener,
  • Heinz-Peter Schlemmer,
  • Stefan O. Schoenberg,
  • Matthias F. Froelich,
  • Marc Kachelrieß,
  • Maurice Ruetters

摘要

Background

This study evaluates the potential of routine clinical photon-counting computed tomography (PCCT) of the cervical spine for opportunistic dental diagnostics.

Methods

Thirty-three patients undergoing routine PCCT were included in this study, with imaging performed at an average dose of 13 mGy. Images were reconstructed to a voxel size of 156 μm and a slice thickness of 0.4 mm. Quantitative image quality was assessed using the contrast-to-noise ratio (CNR) between dental structures, while qualitative assessment of structures like enamel, dentine, root canals, and cortical bone was conducted by two experienced readers using a five-point scale.

Results

The inter-reader reproducibility and intra-class correlation coefficient were excellent (all > 0.947). CNRs ranged from 1.6 to 6.1 for all relevant contrasts, and qualitative scores were excellent for all dental structures. Dental pathologies were detected in a significant portion of patients: caries-induced decay in 9 patients (27%) at 26 sites, apical lesions in 12 patients (36%) at 26 sites, and alveolar bone loss in 12 patients (36%) at 12 sites. At least one pathology was present in 23 patients (70%).

Conclusions

PCCT offers potential for opportunistic dental diagnostics, providing earlier detection of dental issues and potentially improving overall dental care outcomes.