Shown are corresponding short-axis slices from a 62-year-old gentleman with anterior ST elevation MI who was treated with primary PCI. Using the kt-SENSE first-pass perfusion imaging technique on day 2 post MI with 0.1 mmol/kg intravenous gadolinium contrast, there is an area of persistent hypoperfusion corresponding to MO. There is substantial improvement at re-imaging on day 7 (Panel b). (Image provided courtesy of Ananth Kidambi, BMBCh; Adam N. Mather, MBBS; and Sven Plein, MD, PhD; Multidisciplinary Cardiovascular Research Centre & Leeds Institute of Genetics, Health, and Therapeutics, University of Leeds, Leeds, United Kingdom.).