Fig. 4From: [18F]tetrafluoroborate as a PET tracer for the sodium/iodide symporter: the importance of specific activitySUV for the thyroid (upper) and salivary glands (lower) in BALB/c mice estimated by ex vivo biodistribution (open circles) and PET ROI analysis (filled squares) at varying doses of 18/19F-BF4 − (n = 3 for each dose). Error bars represent 1 SD. Significance bars relate to the ex vivo data: *p < 0.05; **p < 0.01Back to article page