Pixel-by-pixel correction of beam hardening artifacts by bowtie filter in fan-beam CT.

Ping YeWei ZhaoTaisei ShimomuraKaiwen LiAkihiro Haga Li-Sheng Geng

Published in: Physics in medicine and biology (2024)

to 0 in the biological tissue phantom and human phantom, respectively. The method was also validated using CT projection data obtained from Activion16. The difference in the LAC in the central and peripheral areas can be reduced by a factor of two.Significance: The proposed PPC method can successfully remove the cupping artifacts in both virtual and authentic CT images. The scanned object's shapes and materials do not affect the technique.&#xD.

Keyphrases

image quality
dual energy
computed tomography
endothelial cells
deep learning
contrast enhanced
monte carlo
electronic health record
convolutional neural network
machine learning
big data