Variation in digital breast tomosynthesis image quality at differing heights above the detector
Abstract Introduction The aim of this preliminary work was to determine if image quality in digital breast tomosynthesis (DBT) changes when tomosynthesis image slices were obtained at differing heights above the detector and in differing breast thicknesses. Methods A CIRS Model 020 BR3D breast imagi...
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| Format: | Article |
| Language: | English |
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Wiley
2022-06-01
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| Series: | Journal of Medical Radiation Sciences |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/jmrs.565 |
| _version_ | 1818539909818875904 |
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| author | Rob Davidson Khaled Al Khalifah Abel Zhou |
| author_facet | Rob Davidson Khaled Al Khalifah Abel Zhou |
| author_sort | Rob Davidson |
| collection | DOAJ |
| description | Abstract Introduction The aim of this preliminary work was to determine if image quality in digital breast tomosynthesis (DBT) changes when tomosynthesis image slices were obtained at differing heights above the detector and in differing breast thicknesses. Methods A CIRS Model 020 BR3D breast imaging phantom was used to obtain the DBT images. The images were also acquired at different tube voltages, and each exposure was determined by the automatic exposure control system. Contrast‐to‐noise ratio (CNR) and figure‐of‐merit (FOM) values were obtained and compared. Results At a phantom thickness of 5 cm or greater, there was a significant reduction (P ≤ 0.05) of image CNR values obtained from the images near the top of the phantom to those obtained near the bottom of the phantom. When the phantom thickness was 4 cm, there was no significant difference in CNR values between DBT images acquired at any height in the phantom. FOM values generally showed no difference when images were obtained at differing heights above the detector. Conclusion Image quality, as measured by the CNR, was reduced when tomosynthesis slice image heights were at the top of the phantom and when the thickness of the phantom was more than 4 cm. From this preliminary work, clinicians need to be aware that DBT images obtained near the top of the breast, when breast thickness is greater than 4 cm, may have reduced image quality. Further work is needed to fully assess any DBT image quality changes when images are obtained near the top of the breast. |
| first_indexed | 2024-12-11T21:48:21Z |
| format | Article |
| id | doaj.art-eeb7b092b4544b40b120b42425f6d8d7 |
| institution | Directory Open Access Journal |
| issn | 2051-3895 2051-3909 |
| language | English |
| last_indexed | 2024-12-11T21:48:21Z |
| publishDate | 2022-06-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Medical Radiation Sciences |
| spelling | doaj.art-eeb7b092b4544b40b120b42425f6d8d72022-12-22T00:49:33ZengWileyJournal of Medical Radiation Sciences2051-38952051-39092022-06-0169217418110.1002/jmrs.565Variation in digital breast tomosynthesis image quality at differing heights above the detectorRob Davidson0Khaled Al Khalifah1Abel Zhou2Discipline of Medical Radiation Science University of Canberra Bruce Australian Capital Territory 2615 AustraliaDiscipline of Medical Radiation Science University of Canberra Bruce Australian Capital Territory 2615 AustraliaDiscipline of Medical Radiation Science University of Canberra Bruce Australian Capital Territory 2615 AustraliaAbstract Introduction The aim of this preliminary work was to determine if image quality in digital breast tomosynthesis (DBT) changes when tomosynthesis image slices were obtained at differing heights above the detector and in differing breast thicknesses. Methods A CIRS Model 020 BR3D breast imaging phantom was used to obtain the DBT images. The images were also acquired at different tube voltages, and each exposure was determined by the automatic exposure control system. Contrast‐to‐noise ratio (CNR) and figure‐of‐merit (FOM) values were obtained and compared. Results At a phantom thickness of 5 cm or greater, there was a significant reduction (P ≤ 0.05) of image CNR values obtained from the images near the top of the phantom to those obtained near the bottom of the phantom. When the phantom thickness was 4 cm, there was no significant difference in CNR values between DBT images acquired at any height in the phantom. FOM values generally showed no difference when images were obtained at differing heights above the detector. Conclusion Image quality, as measured by the CNR, was reduced when tomosynthesis slice image heights were at the top of the phantom and when the thickness of the phantom was more than 4 cm. From this preliminary work, clinicians need to be aware that DBT images obtained near the top of the breast, when breast thickness is greater than 4 cm, may have reduced image quality. Further work is needed to fully assess any DBT image quality changes when images are obtained near the top of the breast.https://doi.org/10.1002/jmrs.565Breast phantombreast tomosynthesiscontrast‐to‐noise ratiofigure‐of‐meritimage quality |
| spellingShingle | Rob Davidson Khaled Al Khalifah Abel Zhou Variation in digital breast tomosynthesis image quality at differing heights above the detector Journal of Medical Radiation Sciences Breast phantom breast tomosynthesis contrast‐to‐noise ratio figure‐of‐merit image quality |
| title | Variation in digital breast tomosynthesis image quality at differing heights above the detector |
| title_full | Variation in digital breast tomosynthesis image quality at differing heights above the detector |
| title_fullStr | Variation in digital breast tomosynthesis image quality at differing heights above the detector |
| title_full_unstemmed | Variation in digital breast tomosynthesis image quality at differing heights above the detector |
| title_short | Variation in digital breast tomosynthesis image quality at differing heights above the detector |
| title_sort | variation in digital breast tomosynthesis image quality at differing heights above the detector |
| topic | Breast phantom breast tomosynthesis contrast‐to‐noise ratio figure‐of‐merit image quality |
| url | https://doi.org/10.1002/jmrs.565 |
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