A Study to Assess Regadenoson Administration Following an Inadequate Exercise Stress Test as Compared to Regadenoson Alone for Myocardial Perfusion Imaging (MPI) Using Single Photon Emission Computed Tomography (SPECT)

Columbia University Medical Center, New York

Westchester Medical Center-New York Medical College, Valhalla

Laurelton Medical center, Laurelton

Buffalo Cardiology & Pulmonary Associates, P.C., Williamsville

University of Pittsburgh Medical Center, Pittsburgh

University of Pennsylvania Hospital, Philadelphia

Berks Cardiologists, Ltd., Wyomissing

Alfieri Cardiology, Newark

Delaware Clinical Trials, Wilmington

University of Maryland, Baltimore

Los Angeles Biomedical Research Institute, Torrance

University of Virginia, Charlottesville

Roanoke Heart Institute, PC, Roanoke

St. Joseph's Hospital, Atlanta

University Cardiology Associates, LLC, Augusta

South Coast Medical Group, Savannah

East Coast Institute for Research, LLC, Jacksonville

St. Luke's Cardiology St. Vincent's HealthCare, Jacksonville

Florida Hospital/Cardiovascular Institute, Orlando

MIMA Century Research Associates, Melbourne

Cardiovascular Research Center of South Florida, Miami

Elite Research and Clinical Trials, Aventura

S & W Clinical Research, Fort Lauderdale

Holy Cross Hospital, Fort Lauderdale

Cardiology Partners Clinical Research Institute, Wellington

University of South Florida, Tampa

Watson Medical Clinic/Lakeland Regional Medical Clinic, Lakeland

Florida Heart Associates, Fort Myers

Mobile Heart Specialists, PC, Mobile

Cardiology Associates of North Mississippi, Tupelo

I U School of Medicine/ Krannert Institute of Cardiology, Indianapolis

Michigan Heart, Ypsilanti

Wayne State University, Detroit

Henry Ford Hospital, Detriot

Hennepin County Medical Center, Minneapolis

Rush University Medical Center, Chicago

Washington University School of Medicine, St Louis

Cardiovascular Imaging Technologies, Kansas City

Midwest Cardiology Associates, Overland Park

Alegent Health Heart and Vascular Specialists, Omaha

Alegent Health Research Center, Omaha

West Houston Area Clinical Trial Consultants, LLC, Tomball

Katy Cardiology Associates, Katy

Mission Research Institute LLC, New Braunfels

Las Vegas Radiology, Las Vegas

Cedars-Sinai Medical Center, Los Angeles

VA Greater Los Angeles Healthcare System, Los Angeles

Westside Medical Associates of Los Angeles, Los Angeles

Ventura Clinical Trials, Malibu

Long Beach Memorial Medical Center, Long Beach

VA San Diego Healthcare System, San Diego

Mission Internal Medical Group, Mission Viejo

Silicon Valley Medical Imaging, Fremont

Santa Rosa Cardiology Medical Group, Inc., Santa Rosa

University of Washington, Seattle

HOCC - New Britain Campus, New Britain

Yale University, New Haven

Maine Research Associates, Portland

Massachusetts General Hospital, Boston

Berkshire Medical Center, Pittsfield

Hospital Italiano Garibaldi, Rosario

Instituto Oulton, Córdoba

Instituto de Cardiologia la Plata, La Plata

Hospital Italiano de La Plata, Provincia de Buenos Aires

Sanatorio San Geronimo, Santa Fe

Clinica Anglo Americana, Lima

Hospital Arzobispo Loayza, Lima

Instituto Nacional Cardiovascular de EsSalud, Lima

VA Caribbean Healthcare System (672), San Juan