For the AI patient study group (N=16), global average MSZs from before and after AVR are significantly correlated (r = .908, p < .001). For a preoperative global average MSZ = 1.25, the expected postoperative global average MSZ = − .066 + 1.318(1.25) = 1.58 > 1 → impaired LV. In other words, the greater the LV global injury is before AVR, the greater the LV injury is expected to be following surgery.