Fig. 3From: Pancreatic CT perfusion: quantitative meta-analysis of disease discrimination, protocol development, and effect of CT parametersLinear regression plots of the means of (a) number of studies, (b) sample size (number of patients), and (c–l) all the CT examination parameters computed over the years. Please note that the plot for injection rate was omitted, as there was no observable trend of the mean injection rateBack to article page