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The scatter plot between the residual pathological tumor size and the MRI size after completing NAC. There are 39 true negative cases that are located on the origin. The unity line is also shown. MRI underestimates the residual tumor size by >5 mm (above unity line) in 27 patients (27/98 = 28%), and overestimates the residual tumor size by >5 mm (below the unity line) in 14 patients (14/98 = 14%).
