Technical Note: Impact on central frequency and noise magnitude ratios by advanced CT image reconstruction techniques.

Tinsu Pan¹, Akira Hasegawa², Dershan Luo³, Carol C Wu⁴, Raghu Vikram⁴

¹Department of Imaging Physics, M.D. Anderson Cancer Center, University of Texas, Austin, TX, USA.

²AlgoMedica, Inc, Sunnyvale, CA, USA.

³Department of Radiation Physics, M.D. Anderson Cancer Center, University of Texas, Austin, TX, USA.

⁴Department of Radiology, M.D. Anderson Cancer Center, University of Texas, Austin, TX, USA.

PubMed DOI

Abstract

PURPOSE: We use central frequency ratio and noise magnitude ratio from noise power spectrum (NPS) to evaluate the noise reduction techniques of ASiR and ASiR-V of GE, SAFIRE and ADMIRE of Siemens, and PixelShine of AlgoMedica. ASiR, ASiR-V, SAFIRE and ADMIRE use a combination of image and projection data whereas PixelShine uses artificial intelligence neural network for noise reduction. METHODS A…

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