26. Contraindication to Gadolinium, including prior adverse reaction to gadolinium, past or current history of severe breathing difficulty that has been treated by a physician (e.g. asthma, COPD, etc) and sickle cell disease. History of renal impairment or estimated glomerular filtration rate <30 L/min.1.732m2 is also exclusionary Interview; Glomerular filtration rate assessed with creatinine via StatSensor monitor