Reducing dose in renal perfusion CT scans: the effects on quantitative imaging features for patients of different sizes

Morgan A. Daly; M. Wasil Wahi-Anwar; Gabriel Melendez-Corres; Grace Hyun J. Kim; Steven S. Raman; Michael F. McNitt-Gray

doi:10.1117/12.2651479

7 April 2023 Reducing dose in renal perfusion CT scans: the effects on quantitative imaging features for patients of different sizes

Morgan A. Daly, M. Wasil Wahi-Anwar, Gabriel Melendez-Corres, Grace Hyun J. Kim, Steven S. Raman, Michael F. McNitt-Gray

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Proceedings Volume 12463, Medical Imaging 2023: Physics of Medical Imaging; 1246321 (2023) https://doi.org/10.1117/12.2651479
Event: SPIE Medical Imaging, 2023, San Diego, California, United States

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Abstract

This study investigates the effect of radiation dose reduction of a renal perfusion CT protocol on quantitative imaging features for patients of different sizes. Our findings indicate that the impact of dose reduction is significantly different between patients of different sizes for standard deviation, entropy, and GLCM joint average at all dose levels evaluated, and for mean at the lowest dose level evaluated (p < .001). These results suggest that a size-based scanning protocol may be needed to provide quantitative results that are robust with respect to patient size.

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Morgan A. Daly, M. Wasil Wahi-Anwar, Gabriel Melendez-Corres, Grace Hyun J. Kim, Steven S. Raman, and Michael F. McNitt-Gray "Reducing dose in renal perfusion CT scans: the effects on quantitative imaging features for patients of different sizes", Proc. SPIE 12463, Medical Imaging 2023: Physics of Medical Imaging, 1246321 (7 April 2023); https://doi.org/10.1117/12.2651479

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