Comparing two different noise magnitude estimation methods in CT using virtual imaging trials

Francesco Ria; Giavanna L. Jadick; Ehsan Abadi; Justin B. Solomon; Ehsan Samei

doi:10.1117/12.2612219

4 April 2022 Comparing two different noise magnitude estimation methods in CT using virtual imaging trials

Francesco Ria, Giavanna L. Jadick, Ehsan Abadi, Justin B. Solomon, Ehsan Samei

Proceedings Volume 12031, Medical Imaging 2022: Physics of Medical Imaging; 120312V (2022) https://doi.org/10.1117/12.2612219
Event: SPIE Medical Imaging, 2022, San Diego, California, United States

Conference Poster

Abstract

Several methods have been introduced over the years to measure CT image noise magnitudes in vivo applying different image segmentation strategies, HU thresholds, and regions of interests in which the noise is calculated. Therefore, it is impossible to directly compare results obtained with different methods and to objectively evaluate image quality in CT. This study provided an unbiased comparison of two methods to estimate noise utilizing a Virtual Imaging Trials platform simulating 1800 image datasets representing different dose levels, anatomical areas, and reconstruction techniques. Only methods that measure noise magnitude in soft tissue can effectively inform protocol design and optimization.

Conference Presentation

Citation Download Citation

Francesco Ria, Giavanna L. Jadick, Ehsan Abadi, Justin B. Solomon, and Ehsan Samei "Comparing two different noise magnitude estimation methods in CT using virtual imaging trials", Proc. SPIE 12031, Medical Imaging 2022: Physics of Medical Imaging, 120312V (4 April 2022); https://doi.org/10.1117/12.2612219

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