A, Comparison of the localizer deviation in each dimension. The horizontal line in each box indicates the median, while the top and bottom borders of each box indicate the 75th and 25th percentiles, respectively. The ends of the whiskers above and below each box indicate the minimum and maximum values. The points beyond the whiskers indicate outliers that are beyond the quartiles by 1.5 interquartiles. B, Comparison of the 3-dimensional deviation. Negative values for anterior-posterior, coronal, or vertical deviations indicate that the localizer deviates posteriorly, laterally, or caudally, respectively.