Fig 1. Calcium influx is faster and increased in adenoma versus normal pituitary gland. The vertical axis represents the mean percentage change in intensity from baseline values calculated as the following: (intensity at time point – intensity at baseline) / (intensity at baseline) x 100. The horizontal axis is time in hours postinjection. Error bars show the SD of mean percentage change. The asterisk indicates that differences between the 2 groups reached statistical significance at 1, 3, 11, and 48 hours (P .05).