1 Department of Radiology and Diagnostic Imaging, University of Alberta, Edmonton, Alberta, Canada; Department of Biomedical Engineering, University of Alberta, Edmonton, Alberta, Canada; Department of Physics, University of Alberta, Edmonton, Alberta, Canada; School of Dentistry, University of Alberta, Edmonton, Alberta, Canada. Electronic address: [email protected].
2 Department of Radiology and Diagnostic Imaging, University of Alberta, Edmonton, Alberta, Canada; Department of Biomedical Engineering, University of Alberta, Edmonton, Alberta, Canada.
3 Institute of Physics, Vietnam Academy of Science and Technology, Hanoi, Vietnam.
4 Department of Radiology and Diagnostic Imaging, University of Alberta, Edmonton, Alberta, Canada.
5 School of Dentistry, University of Alberta, Edmonton, Alberta, Canada.
6 Department of Electrical Engineering, University of Alberta, Edmonton, Alberta, Canada.