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Abstract #2631

Hybrid bias correction of thoracic zero echo time (ZTE) imagesĀ 

Chang Sun1, Roido Manavaki1, Jason Tarkin2, Christopher Wall2, James HF Rudd2, Fiona J Gilbert1, and Martin J Graves1
1Department of Radiology, University of Cambridge, Cambridge, United Kingdom, 2Division of Cardiovascular Medicine, University of Cambridge, Cambridge, United Kingdom

Bias correction in the thoracic region is challenging due to the low proton density in the lung. Traditional retrospective bias correction techniques, such as surface fitting method and the histogram-based method, suffer from over suppression in the lung regions or increased noise in the tissue. We propose a hybrid bias correction method that combines the advantages of the surface fitting and the histogram-based methods. The hybrid method normalized the signal intensity in lung and reduced the signal variation in tissue.

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