Figure 4From: Improved operator agreement and efficiency using the minimum area contour change method for delineation of hyperintense multiple sclerosis lesions on FLAIR MRI Graph of contour index number (from low to high) and SqrtArea(L n )-SqrtArea(L n + 1 ). The arrow passes through the minimum of the graph, and points to the value of n that is selected by the algorithm.Back to article page