SAN FRANCISCO — This year's edition of the Heart Rhythm Society (HRS; Washington) scientific sessions included a presentation by Natalia Trayanova, PhD, of Johns Hopkins (Baltimore), who is spearheading an effort at the Hopkins computational cardiology lab to come up with a model for a virtual electrophysiology lab. She said this current effort is built around "an MRI-based modeling environment," with the objective being the acquisition of data from the level of molecules to aid in the diagnosis and treatment of heart disease for each individual patient based on that patient's specific features.