Use of virtual monoenergetic images for reduction of extensive dental implant associated artifacts in photon-counting detector CT
Abstract Aim of this study was to assess the impact of virtual monoenergetic images (VMI) on dental implant artifacts in photon-counting detector computed tomography (PCD-CT) compared to standard reconstructed polychromatic images (PI). 30 scans with extensive (≥ 5 dental implants) dental implant-as...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2024-01-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-023-50926-3 |
| _version_ | 1827388487149551616 |
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| author | Yannik C. Layer Narine Mesropyan Patrick A. Kupczyk Julian A. Luetkens Alexander Isaak Tatjana Dell Benjamin P. Ernst Ulrike I. Attenberger Daniel Kuetting |
| author_facet | Yannik C. Layer Narine Mesropyan Patrick A. Kupczyk Julian A. Luetkens Alexander Isaak Tatjana Dell Benjamin P. Ernst Ulrike I. Attenberger Daniel Kuetting |
| author_sort | Yannik C. Layer |
| collection | DOAJ |
| description | Abstract Aim of this study was to assess the impact of virtual monoenergetic images (VMI) on dental implant artifacts in photon-counting detector computed tomography (PCD-CT) compared to standard reconstructed polychromatic images (PI). 30 scans with extensive (≥ 5 dental implants) dental implant-associated artifacts were retrospectively analyzed. Scans were acquired during clinical routine on a PCD-CT. VMI were reconstructed for 100–190 keV (10 keV steps) and compared to PI. Artifact extent and assessment of adjacent soft tissue were rated using a 5-point Likert grading scale for qualitative assessment. Quantitative assessment was performed using ROIs in most pronounced hypodense and hyperdense artifacts, artifact-impaired soft tissue, artifact-free fat and muscle tissue. A corrected attenuation was calculated as difference between artifact-impaired tissue and tissue without artifacts. Qualitative assessment of soft palate and cheeks improved for all VMI compared to PI (Median PI: 1 (Range: 1–3) and 1 (1–3); e.g. VMI130 keV 2 (1–5); p < 0.0001 and 2 (1–4); p < 0.0001). In quantitative assessment, VMI130 keV showed best results with a corrected attenuation closest to 0 (PI: 30.48 ± 98.16; VMI130 keV: − 0.55 ± 73.38; p = 0.0026). Overall, photon-counting deducted VMI reduce the extent of dental implant-associated artifacts. VMI of 130 keV showed best results and are recommended to support head and neck CT scans. |
| first_indexed | 2024-03-08T16:20:31Z |
| format | Article |
| id | doaj.art-7dbe397570cd4f5d979a5b70a6fee1cf |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-03-08T16:20:31Z |
| publishDate | 2024-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-7dbe397570cd4f5d979a5b70a6fee1cf2024-01-07T12:25:02ZengNature PortfolioScientific Reports2045-23222024-01-0114111010.1038/s41598-023-50926-3Use of virtual monoenergetic images for reduction of extensive dental implant associated artifacts in photon-counting detector CTYannik C. Layer0Narine Mesropyan1Patrick A. Kupczyk2Julian A. Luetkens3Alexander Isaak4Tatjana Dell5Benjamin P. Ernst6Ulrike I. Attenberger7Daniel Kuetting8Department of Diagnostic and Interventional Radiology, University Hospital BonnDepartment of Diagnostic and Interventional Radiology, University Hospital BonnDepartment of Diagnostic and Interventional Radiology, University Hospital BonnDepartment of Diagnostic and Interventional Radiology, University Hospital BonnDepartment of Diagnostic and Interventional Radiology, University Hospital BonnDepartment of Diagnostic and Interventional Radiology, University Hospital BonnDepartment of Otorhinolaryngology, University Hospital BonnDepartment of Diagnostic and Interventional Radiology, University Hospital BonnDepartment of Diagnostic and Interventional Radiology, University Hospital BonnAbstract Aim of this study was to assess the impact of virtual monoenergetic images (VMI) on dental implant artifacts in photon-counting detector computed tomography (PCD-CT) compared to standard reconstructed polychromatic images (PI). 30 scans with extensive (≥ 5 dental implants) dental implant-associated artifacts were retrospectively analyzed. Scans were acquired during clinical routine on a PCD-CT. VMI were reconstructed for 100–190 keV (10 keV steps) and compared to PI. Artifact extent and assessment of adjacent soft tissue were rated using a 5-point Likert grading scale for qualitative assessment. Quantitative assessment was performed using ROIs in most pronounced hypodense and hyperdense artifacts, artifact-impaired soft tissue, artifact-free fat and muscle tissue. A corrected attenuation was calculated as difference between artifact-impaired tissue and tissue without artifacts. Qualitative assessment of soft palate and cheeks improved for all VMI compared to PI (Median PI: 1 (Range: 1–3) and 1 (1–3); e.g. VMI130 keV 2 (1–5); p < 0.0001 and 2 (1–4); p < 0.0001). In quantitative assessment, VMI130 keV showed best results with a corrected attenuation closest to 0 (PI: 30.48 ± 98.16; VMI130 keV: − 0.55 ± 73.38; p = 0.0026). Overall, photon-counting deducted VMI reduce the extent of dental implant-associated artifacts. VMI of 130 keV showed best results and are recommended to support head and neck CT scans.https://doi.org/10.1038/s41598-023-50926-3 |
| spellingShingle | Yannik C. Layer Narine Mesropyan Patrick A. Kupczyk Julian A. Luetkens Alexander Isaak Tatjana Dell Benjamin P. Ernst Ulrike I. Attenberger Daniel Kuetting Use of virtual monoenergetic images for reduction of extensive dental implant associated artifacts in photon-counting detector CT Scientific Reports |
| title | Use of virtual monoenergetic images for reduction of extensive dental implant associated artifacts in photon-counting detector CT |
| title_full | Use of virtual monoenergetic images for reduction of extensive dental implant associated artifacts in photon-counting detector CT |
| title_fullStr | Use of virtual monoenergetic images for reduction of extensive dental implant associated artifacts in photon-counting detector CT |
| title_full_unstemmed | Use of virtual monoenergetic images for reduction of extensive dental implant associated artifacts in photon-counting detector CT |
| title_short | Use of virtual monoenergetic images for reduction of extensive dental implant associated artifacts in photon-counting detector CT |
| title_sort | use of virtual monoenergetic images for reduction of extensive dental implant associated artifacts in photon counting detector ct |
| url | https://doi.org/10.1038/s41598-023-50926-3 |
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