Tantalum-specific contrast-to-noise ratio or conventional detector dose-driven exposure control in angiography: radiation dose and image quality evaluation in a porcine model
Abstract Background The aim of this animal study was to compare the fluoroscopic image quality (IQ) and radiation dose between a tantalum (Ta)-specific contrast-to-noise ratio-driven exposure control (Ta-CEC) and a detector dose-driven exposure control (DEC) in abdominal angiography. Methods Nine an...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2022-05-01
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| Series: | European Radiology Experimental |
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| Online Access: | https://doi.org/10.1186/s41747-022-00275-z |
| _version_ | 1828323344840130560 |
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| author | Thomas Werncke Timo Christian Meine Jan B. Hinrichs Sabine K. Maschke Lena Sophie Becker Inga Brüsch Regina Rumpel Frank K. Wacker Bernhard C. Meyer |
| author_facet | Thomas Werncke Timo Christian Meine Jan B. Hinrichs Sabine K. Maschke Lena Sophie Becker Inga Brüsch Regina Rumpel Frank K. Wacker Bernhard C. Meyer |
| author_sort | Thomas Werncke |
| collection | DOAJ |
| description | Abstract Background The aim of this animal study was to compare the fluoroscopic image quality (IQ) and radiation dose between a tantalum (Ta)-specific contrast-to-noise ratio-driven exposure control (Ta-CEC) and a detector dose-driven exposure control (DEC) in abdominal angiography. Methods Nine angiography scenarios were created in seven anaesthetised pigs using Ta-based embolisation material during percutaneous liver and kidney intervention. Fluoroscopic images were acquired using three DEC protocols with different dose levels and Ta-CEC protocols with different IQ levels, sampled in small steps. Polymethyl-methacrylate and aluminium plates were used to simulate attenuation of three water equivalent thicknesses (WET). Three blinded readers evaluated the IQ of DEC and dose equivalent Ta images and selected the Ta-IQ equivalent image corresponding to the DEC image. Results Interobserver agreement for the IQ assessment was 0.43 for DEC, 0.56 for Ta-CEC and for the assessment of incident air kerma at the interventional reference point (K a,r) for the Ta-IQ equivalent image 0.73. The average IQ of the dose equivalent Ta images was superior compared to the DEC images (p < 0.001) and also for every WET (26, 31, or 36 cm) and dose level (p ≤ 0.022). The average K a,r for the Ta-IQ equivalent images was 59 ± 16% (mean ± standard deviation) lower compared to the DEC images (p < 0.001). Conclusions Compared to DEC, Ta-CEC significantly improved the fluoroscopic depiction of Ta, while maintaining the K a,r. Alternatively, the K a,r can be significantly reduced by using Ta-CEC instead of DEC, while maintaining equivalent IQ. |
| first_indexed | 2024-04-13T18:51:51Z |
| format | Article |
| id | doaj.art-80f9b64bb6d747cf8d05b83fda630f24 |
| institution | Directory Open Access Journal |
| issn | 2509-9280 |
| language | English |
| last_indexed | 2024-04-13T18:51:51Z |
| publishDate | 2022-05-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Radiology Experimental |
| spelling | doaj.art-80f9b64bb6d747cf8d05b83fda630f242022-12-22T02:34:24ZengSpringerOpenEuropean Radiology Experimental2509-92802022-05-016111110.1186/s41747-022-00275-zTantalum-specific contrast-to-noise ratio or conventional detector dose-driven exposure control in angiography: radiation dose and image quality evaluation in a porcine modelThomas Werncke0Timo Christian Meine1Jan B. Hinrichs2Sabine K. Maschke3Lena Sophie Becker4Inga Brüsch5Regina Rumpel6Frank K. Wacker7Bernhard C. Meyer8Department of Diagnostic and Interventional Radiology, Hannover Medical SchoolDepartment of Diagnostic and Interventional Radiology, Hannover Medical SchoolDepartment of Diagnostic and Interventional Radiology, Hannover Medical SchoolDepartment of Diagnostic and Interventional Radiology, Hannover Medical SchoolDepartment of Diagnostic and Interventional Radiology, Hannover Medical SchoolInstitute for Laboratory Animal Science and Central Animal Facility, Hannover Medical SchoolInstitute for Laboratory Animal Science and Central Animal Facility, Hannover Medical SchoolDepartment of Diagnostic and Interventional Radiology, Hannover Medical SchoolDepartment of Diagnostic and Interventional Radiology, Hannover Medical SchoolAbstract Background The aim of this animal study was to compare the fluoroscopic image quality (IQ) and radiation dose between a tantalum (Ta)-specific contrast-to-noise ratio-driven exposure control (Ta-CEC) and a detector dose-driven exposure control (DEC) in abdominal angiography. Methods Nine angiography scenarios were created in seven anaesthetised pigs using Ta-based embolisation material during percutaneous liver and kidney intervention. Fluoroscopic images were acquired using three DEC protocols with different dose levels and Ta-CEC protocols with different IQ levels, sampled in small steps. Polymethyl-methacrylate and aluminium plates were used to simulate attenuation of three water equivalent thicknesses (WET). Three blinded readers evaluated the IQ of DEC and dose equivalent Ta images and selected the Ta-IQ equivalent image corresponding to the DEC image. Results Interobserver agreement for the IQ assessment was 0.43 for DEC, 0.56 for Ta-CEC and for the assessment of incident air kerma at the interventional reference point (K a,r) for the Ta-IQ equivalent image 0.73. The average IQ of the dose equivalent Ta images was superior compared to the DEC images (p < 0.001) and also for every WET (26, 31, or 36 cm) and dose level (p ≤ 0.022). The average K a,r for the Ta-IQ equivalent images was 59 ± 16% (mean ± standard deviation) lower compared to the DEC images (p < 0.001). Conclusions Compared to DEC, Ta-CEC significantly improved the fluoroscopic depiction of Ta, while maintaining the K a,r. Alternatively, the K a,r can be significantly reduced by using Ta-CEC instead of DEC, while maintaining equivalent IQ.https://doi.org/10.1186/s41747-022-00275-zAngiography (digital subtraction)AnimalsFluoroscopyRadiation dosageTantalum |
| spellingShingle | Thomas Werncke Timo Christian Meine Jan B. Hinrichs Sabine K. Maschke Lena Sophie Becker Inga Brüsch Regina Rumpel Frank K. Wacker Bernhard C. Meyer Tantalum-specific contrast-to-noise ratio or conventional detector dose-driven exposure control in angiography: radiation dose and image quality evaluation in a porcine model European Radiology Experimental Angiography (digital subtraction) Animals Fluoroscopy Radiation dosage Tantalum |
| title | Tantalum-specific contrast-to-noise ratio or conventional detector dose-driven exposure control in angiography: radiation dose and image quality evaluation in a porcine model |
| title_full | Tantalum-specific contrast-to-noise ratio or conventional detector dose-driven exposure control in angiography: radiation dose and image quality evaluation in a porcine model |
| title_fullStr | Tantalum-specific contrast-to-noise ratio or conventional detector dose-driven exposure control in angiography: radiation dose and image quality evaluation in a porcine model |
| title_full_unstemmed | Tantalum-specific contrast-to-noise ratio or conventional detector dose-driven exposure control in angiography: radiation dose and image quality evaluation in a porcine model |
| title_short | Tantalum-specific contrast-to-noise ratio or conventional detector dose-driven exposure control in angiography: radiation dose and image quality evaluation in a porcine model |
| title_sort | tantalum specific contrast to noise ratio or conventional detector dose driven exposure control in angiography radiation dose and image quality evaluation in a porcine model |
| topic | Angiography (digital subtraction) Animals Fluoroscopy Radiation dosage Tantalum |
| url | https://doi.org/10.1186/s41747-022-00275-z |
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