1. 1 Imaging Physics Chi Liu CT PET SPECT -Image Reconstruction Algorithms -Respiratory and Cardiac Motion Correction -Quantitative Imaging Anatomy Function

2. Cardiac SPECT Reconstruction 2 Conventional Reconstruction CT Contour Reconstruction GE SPECT/CT

3. PET/SPECT Reconstruction using CT Information CTConventional Reconstruction PVC w/ Anatomical Info Resolution RecoveryPVC w/ Anatomical Info Conventional Reconstruction PET SPECT

4. No Correction Conventional Method Motion Correction Motion Noise 4 Proposed Method No Correction Respiratory Motion Correction Dual Respiratory and Cardiac Motion Correction