New Dye Helps Control 'Lighting' for Sharper Images of Heart June 18, 2019 Brett Angel, MD , a faculty member from the College of Medicine, was quoted in a June 18 DotMed Health Care Business News story about collaborate research with Steven Wrenn, PhD, an associate professor in the College of Engineering, to develop a cardiac imaging contrast agent triggered by the heart’s electrical activity. View Story Topical Tags: College of Medicine College of Engineering Share Related