Figure 3From: Safety and efficacy of Y-90 microsphere treatment in patients with primary and metastatic liver cancer: The tumor selectivity of the treatment as a function of tumor to liver flow ratioThere is a linear relationship between TLR and tumor absorbed dose with an equation of y = 15.02x.+29.06 and an R-squared of 0.24. The TLR is determined using Tc-99m MAA SPECT imaging.Back to article page