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22 May 2020 Comparison of propagation-based phase-contrast CT and absorption-based CT for breast imaging using synchrotron radiation
Seyedamir Tavakoli Taba, Sarah Lewis, Patrycja M. Baran, Benedicta D. Arhatari, Yakov I. Nesterets, Sheridan C. Mayo, Darren Thompson, Jane Fox, Beena Kumar, Zdenka Prodanovic, Daniel Hausermann, Anton Maksimenko, Christopher Hall, Matthew Dimmock, Konstantin M. Pavlov, Andrew Peele, Harry M. Quiney, Darren Lockie, Giuliana Tromba, Timur E. Gureyev, Patrick C. Brennan
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Proceedings Volume 11513, 15th International Workshop on Breast Imaging (IWBI2020); 115130T (2020) https://doi.org/10.1117/12.2564053
Event: Fifteenth International Workshop on Breast Imaging, 2020, Leuven, Belgium
Abstract
Propagation-based phase-contrast CT (PB-CT) is a novel imaging technique that visualises variations in both X-ray attenuation and refraction. This study aimed to compare the clinical image quality of breast PB-CT using synchrotron radiation with conventional absorption-based CT (AB-CT), at the same radiation dose. Seven breast mastectomy specimens were scanned and evaluated by a group of 14 radiologists and medical imaging experts who assessed the images based on seven radiological image quality criteria. Visual grading characteristics (VGC) were used to analyse the results and the area under the VGC curve was obtained to measure the differences between the two techniques. For six image quality criteria (overall quality, perceptible contrast, lesion sharpness, normal tissue interfaces, calcification visibility and image noise), PB-CT images were superior to AB-CT images of the same dose (AUCVGC: 0.704 to 0.914, P≤.05). For the seventh criteria (artefacts), PB-CT images were also rated better than AB-CT images (AUCVGC: 0.647) but the difference was not significant. The results of this study provide a solid basis for future experimental and clinical protocols of breast PB-CT.
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Seyedamir Tavakoli Taba, Sarah Lewis, Patrycja M. Baran, Benedicta D. Arhatari, Yakov I. Nesterets, Sheridan C. Mayo, Darren Thompson, Jane Fox, Beena Kumar, Zdenka Prodanovic, Daniel Hausermann, Anton Maksimenko, Christopher Hall, Matthew Dimmock, Konstantin M. Pavlov, Andrew Peele, Harry M. Quiney, Darren Lockie, Giuliana Tromba, Timur E. Gureyev, and Patrick C. Brennan "Comparison of propagation-based phase-contrast CT and absorption-based CT for breast imaging using synchrotron radiation", Proc. SPIE 11513, 15th International Workshop on Breast Imaging (IWBI2020), 115130T (22 May 2020); https://doi.org/10.1117/12.2564053
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KEYWORDS
Image quality
Breast
X-ray computed tomography
X-rays
Tissues
Synchrotrons
Visualization
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