Results of measured stiffness values from the first reading of Reader 1 and 2 for Exams 1-4 of all twenty volunteers and Exams 1-2 of all ten patients. The vertical dashed line separates healthy volunteers (left, squares) from patients (right, triangles), black shapes represent Reader 1 values, and white shapes represent Reader 2 values. The dashed horizontal line through the volunteer data represents the mean stiffness of all twenty volunteers for Exams 1-4 (2.44 ± 0.06 kPa), and similarly for the patient data (4.00 ± 0.51 kPa) for both readings. Error bars represent measured standard deviation for each individual’s exam (kPa).