Photon-counting-detector CT outperforms state-of-the-art cone-beam and energy-integrated-detector CT in delineation of dental root canals
Abstract This experimental phantom study investigates current standard of care protocols in cone beam computed tomography (CBCT), energy-integrating-detector (EID) CT, and photon-counting-detector (PCD) CT regarding their potential in delineation of dental root canals. Artificial accessory canals (d...
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Nature Portfolio
2025-01-01
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| Online Access: | https://doi.org/10.1038/s41598-025-87081-w |
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| author | Stephan Rau Martin Peter Pichotka Alexander Rau Marco Reisert Markus Jörg Altenburger Rainer Schmelzeisen Fabian Cieplik Fabian Bamberg Maximilian Frederik Russe Wiebke Semper-Hogg |
| author_facet | Stephan Rau Martin Peter Pichotka Alexander Rau Marco Reisert Markus Jörg Altenburger Rainer Schmelzeisen Fabian Cieplik Fabian Bamberg Maximilian Frederik Russe Wiebke Semper-Hogg |
| author_sort | Stephan Rau |
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| description | Abstract This experimental phantom study investigates current standard of care protocols in cone beam computed tomography (CBCT), energy-integrating-detector (EID) CT, and photon-counting-detector (PCD) CT regarding their potential in delineation of dental root canals. Artificial accessory canals (diameters: 1000, 600, 400, 300 and 200 μm) were drilled into three bovine teeth mounted on a bovine rib as a jaw substitute. The phantom was scanned in two dental CBCTs, two EID-CTs and a PCD-CT using standard clinical protocols. Scans from a micro-CT served as reference standard. Spatial resolution was evaluated via line profiles through the canals, whereby visibility compared to surrounding noise and compared to the ground truth were assessed. PCD-CT was able to delineate all artificial canals down to 200 μm diameter. In CBCT and EID-CT canals could only be reliably detected down to 300 μm. Also, PCD-CT showed a considerably smaller width-divergence from the ground trough with 4.4% at 1000 μm and 35.1% at 300 μm compared to CBCT (13.5 and 72.9%) and EID-CT (10.1 and 115.7%). PCD-CT provided superior resolution, accurate size measurement, and enhanced detection of small dental root canals, thereby offering improvements in diagnostic capabilities compared to CBCT and EID-CT systems. |
| format | Article |
| id | doaj-art-9b8a46a6713843bd9162c4b29f1f4929 |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
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| series | Scientific Reports |
| spelling | doaj-art-9b8a46a6713843bd9162c4b29f1f49292025-01-26T12:23:41ZengNature PortfolioScientific Reports2045-23222025-01-0115111010.1038/s41598-025-87081-wPhoton-counting-detector CT outperforms state-of-the-art cone-beam and energy-integrated-detector CT in delineation of dental root canalsStephan Rau0Martin Peter Pichotka1Alexander Rau2Marco Reisert3Markus Jörg Altenburger4Rainer Schmelzeisen5Fabian Cieplik6Fabian Bamberg7Maximilian Frederik Russe8Wiebke Semper-Hogg9Department of Diagnostic and Interventional Radiology, Faculty of Medicine, Medical Center – University of Freiburg, University of FreiburgDivision of Medical Physics, Department of Diagnostic and Interventional Radiology, Faculty of Medicine, University Medical Center Freiburg, University of FreiburgDepartment of Neuroradiology, Faculty of Medicine, Medical Center – University of Freiburg, University of FreiburgDepartment of Diagnostic and Interventional Radiology, Faculty of Medicine, Medical Center – University of Freiburg, University of FreiburgDepartment of Operative Dentistry and Periodontology, Faculty of Medicine, Medical Center – University of Freiburg, University of FreiburgDepartment of Oral and Maxillofacial Surgery, Faculty of Medicine, Medical Center – University of Freiburg, University of FreiburgDepartment of Operative Dentistry and Periodontology, Faculty of Medicine, Medical Center – University of Freiburg, University of FreiburgDepartment of Diagnostic and Interventional Radiology, Faculty of Medicine, Medical Center – University of Freiburg, University of FreiburgDepartment of Diagnostic and Interventional Radiology, Faculty of Medicine, Medical Center – University of Freiburg, University of FreiburgDepartment of Oral and Maxillofacial Surgery, Faculty of Medicine, Medical Center – University of Freiburg, University of FreiburgAbstract This experimental phantom study investigates current standard of care protocols in cone beam computed tomography (CBCT), energy-integrating-detector (EID) CT, and photon-counting-detector (PCD) CT regarding their potential in delineation of dental root canals. Artificial accessory canals (diameters: 1000, 600, 400, 300 and 200 μm) were drilled into three bovine teeth mounted on a bovine rib as a jaw substitute. The phantom was scanned in two dental CBCTs, two EID-CTs and a PCD-CT using standard clinical protocols. Scans from a micro-CT served as reference standard. Spatial resolution was evaluated via line profiles through the canals, whereby visibility compared to surrounding noise and compared to the ground truth were assessed. PCD-CT was able to delineate all artificial canals down to 200 μm diameter. In CBCT and EID-CT canals could only be reliably detected down to 300 μm. Also, PCD-CT showed a considerably smaller width-divergence from the ground trough with 4.4% at 1000 μm and 35.1% at 300 μm compared to CBCT (13.5 and 72.9%) and EID-CT (10.1 and 115.7%). PCD-CT provided superior resolution, accurate size measurement, and enhanced detection of small dental root canals, thereby offering improvements in diagnostic capabilities compared to CBCT and EID-CT systems.https://doi.org/10.1038/s41598-025-87081-wTomographyX-ray computedPhoton-counting CTPhoton-counting detectorsCBCT |
| spellingShingle | Stephan Rau Martin Peter Pichotka Alexander Rau Marco Reisert Markus Jörg Altenburger Rainer Schmelzeisen Fabian Cieplik Fabian Bamberg Maximilian Frederik Russe Wiebke Semper-Hogg Photon-counting-detector CT outperforms state-of-the-art cone-beam and energy-integrated-detector CT in delineation of dental root canals Scientific Reports Tomography X-ray computed Photon-counting CT Photon-counting detectors CBCT |
| title | Photon-counting-detector CT outperforms state-of-the-art cone-beam and energy-integrated-detector CT in delineation of dental root canals |
| title_full | Photon-counting-detector CT outperforms state-of-the-art cone-beam and energy-integrated-detector CT in delineation of dental root canals |
| title_fullStr | Photon-counting-detector CT outperforms state-of-the-art cone-beam and energy-integrated-detector CT in delineation of dental root canals |
| title_full_unstemmed | Photon-counting-detector CT outperforms state-of-the-art cone-beam and energy-integrated-detector CT in delineation of dental root canals |
| title_short | Photon-counting-detector CT outperforms state-of-the-art cone-beam and energy-integrated-detector CT in delineation of dental root canals |
| title_sort | photon counting detector ct outperforms state of the art cone beam and energy integrated detector ct in delineation of dental root canals |
| topic | Tomography X-ray computed Photon-counting CT Photon-counting detectors CBCT |
| url | https://doi.org/10.1038/s41598-025-87081-w |
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