2015 IEEE International Symposium on Biomedical Imaging
Abstract
A new non-local means (NLM) filter using CT side information is proposed for SPECT. This filter was evaluated using bias-variance and recovery coefficient-variance. Our proposed filter yielded superior performance over conventional Gaussian, NLM, and previous NLM with side information filters. The proposed filter also showed robust performance for misregistration between SPECT and CT.