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Table 1 Count rates corresponding to different syringe water column heights

From: The effect of object size on the sensitivity of single photon emission computed tomography: comparison of two CZT cardiac cameras and an Anger scintillation camera

D-SPECT Water column height 3.4 cm 4.4 cm 5.5 cm 6.5 cm 7.5 cm  
  Kilocounts per minute per megabecquerel CVa Mean CVb
Series 1 39.62 38.25 36.79 35.19 33.54 0.066 0.080
Series 2 41.63 40.35 37.43 36.16 33.49 0.086
Series 3 38.53 35.70 35.28 32.30 30.33 0.092
Series 4 37.20 35.73 33.84 32.31 30.30 0.081
Series 5 37.86 35.39 34.30 31.98 31.35 0.077
D530c Water column height 3 cm 4.2 cm 5.4 cm 6.6 cm 7.8 cm   
  Kilocounts per minute per megabecquerel CVa Mean CVb
Series 1 18.38 18.78 18.81 19.76 20.42 0.043 0.028
Series 2 22.66 23.26 23.86 24.39 24.84 0.037
Series 3 19.03 19.25 19.60 20.07 20.62 0.033
Series 4 19.32 19.32 19.63 19.81 19.92 0.014
Series 5 18.35 18.04 18.14 18.00 18.57 0.013
A-SPECT Water column height 3 cm 4.2 cm 5.4 cm 6.6 cm 7.8 cm   
  Kilocounts per minute per megabecquerel CVa Mean CVb
Series 1 7.65 7.47 7.53 7.52 7.33 0.015 0.009
Series 2 7.06 6.95 6.91 6.89 6.87 0.011
Series 3 6.97 6.89 6.90 6.89 6.93 0.005
Series 4 6.92 6.86 6.85 6.88 6.91 0.005
Series 5 6.94 6.84 6.86 6.80 6.84 0.007