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Table 1 Mean recovery coefficient (RC), SD and repeatability (RD), obtained with and without Butterworth post-filtering, derived from the myocardium compartment for various configurations

From: Experimental validation of absolute SPECT/CT quantification for response monitoring in patients with coronary artery disease

  No filter    Butterworth   
Configuration RC SD RD RC SD RD
S 0.67 0.02 3.51 0.64 0.02 2.72
M 0.63 0.01 1.59 0.61 0.01 1.41
L 0.62 0.03 4.91 0.59 0.03 4.35
SS 0.60 0.01 1.53 0.58 0.01 1.18
SM 0.63 0.01 1.96 0.61 0.01 2.26
GT 0.63 0.03 5.41 0.61 0.03 5.53
Mean    3.15    2.91