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. Author manuscript; available in PMC: 2016 Apr 11.
Published in final edited form as: IEEE Nucl Sci Symp Conf Rec (1997). 2014 Nov;2014:10.1109/NSSMIC.2014.7431006. doi: 10.1109/NSSMIC.2014.7431006

Fig. 6.

Fig. 6

The ratio of FWHM in z-direction to the FWHM averaged in x and y-directions is shown for 18F and 68Ga line source phantoms imaged with the PET/CT system (orange) and the PET/MRI system (blue) in (a) air and (b) water.