Fig 1.
Coincidence lines and line density grid from sample measurement.
Coincidence lines are generated from 10 msec scan of three 1.5 MBq particles. Inset is the line density tallying of this data over grids of size 1 mm × 1 mm × 1 mm. Local maxima are circled.
Fig 2.
Photographs of experimental equipment.
(Left) 500 mL bottle used in cell tracking experiment. (Right) Photograph of bottle placed into bore of PET scanner.
Fig 3.
Trajectories of yeast cells measured via PEPT in first scan.
Different colors indicate different particles. Colors are coordinated by particle across panels.
Fig 4.
Trajectories of yeast cells measured via PEPT in second scan.
Different colors indicate different particles. Colors are coordinated by particle across panels. Trajectories that are suspected to be affected by occlusion are indicated by large square icons.
Fig 5.
Average background line density grid at 5 axial locations in Inveon scanner.
Images show number of CL crossings per minute, with line crossings counted on a 2 mm × 2 mm × 2 mm grid. Images are smoothed via a boxcar kernel of side width 3 voxels before averaging.
Fig 6.
Sample line density grid images.
(Top Row) Images from first minute of yeast tracking experiment. Four axial locations show particle images. CL crossings are counted on a 2 mm × 2 mm × 2 mm grid, and images are smoothed via a boxcar kernel of side width 3 voxels. (Bottom Row) For comparison, images at same axial positions from first minute of background scan are shown.