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Table 2 Acquisition parameters for all time points. A medium energy collimator and a single PHA energy window of 208 keV ± 10 % were used for all acquisitions

From: In vivo quantification of 177Lu with planar whole-body and SPECT/CT gamma camera imaging

Approx. time from injection (h) Cohort Acquisition Parameters Comments
Morning of RNT Both Blank planar WB scan 57Co sheet source; 10 cm min−1; range 0–199 cm; matrix 1024 × 256  
−1 Both Transmission planar WB scan 57Co sheet source; 10 cm min−1; range 0–199 cm; matrix 1024 × 256 Prior to administration of [177Lu]-DOTATATE
0.5 1 Whole-body planar emission scan 177Lu; 20 cm min−1; matrix 1024 × 256 Prior to voiding—100 % of administered radioactivity remaining in subject
0.5 2 SPECT/CT of the thorax and abdomen 177Lu; 10 s/projection, 120 projections (3° radial sampling), step and shoot mode; acquisition matrix 128 × 128 Venous blood sample taken at mid-point of scan
~4 Both Whole-body planar emission 177Lu; 20 cm min−1; matrix 1024 × 256  
~4 Both SPECT/CT over the kidneys 177Lu; 15 s/projection, 120 projections (3° radial sampling), step and shoot mode; acquisition matrix 128 × 128 Time per projection increased due to lower retained radioactivity
~24 Both Whole-body planar emission 177Lu; 10 cm min−1; matrix 1024 × 256  
~24 Both SPECT/CT over the kidneys 177Lu; 20 s/projection, 120 projections (3° radial sampling), step and shoot mode; acquisition matrix 128 × 128 Time per projection increased to reflect decreased overall retained radioactivity
~96 or 120 Both Whole-body planar emission 177Lu; 10 cm min−1; matrix 1024 × 256  
~96 or 120 Both SPECT/CT over the kidneys 177Lu; 20 s/projection, 120 projections (3° radial sampling), step and shoot mode; acquisition matrix 128 × 128