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Table 2 Correlation analyses between the measures of tracer uptake and the CT-based bone density variables

From: Quantification of 99mTc-DPD concentration in the lumbar spine with SPECT/CT

  HU correlation ( r) Age correlation ( r) LAC correlation ( r)
ACC (kBq/ml) 0.483 −0.379 0.422*
ACC (SUVBW) 0.678 −0.385 0.586
ACC (SUVLBW) 0.648 −0.452 0.570
ACC (SUVBSA) 0.637 −0.424 0.552
HU   −0.650 0.960
LAC 0.960 −0.698  
  1. ACC activity concentration, BSA body surface area, BW body weight, HU Hounsfield unit, LAC linear attenuation coefficient, LBW lean body weight, r, Pearson's correlation coefficient, SUV, standardised uptake value. *Correlation significance for LAC vs. ACC (kBq/ml) was p < 0.001. All the other correlations were p < 0.0001.