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Biventricular Devices

Principal Investigator: Henry Halperin, M.D., M.A.

Study Coordinator: Rozann Hansford, R.N., M.P.H.

Study Coordinator
Contact Phone:

Study Coordinator Email:

Study Short Title: MRI in Patients with Biventricular Devices

Study Long Title: Cardiac Magnetic Resonance Imaging in the Setting of Implantable Biventricular Pacemakers to Assess Phenotype Predictors of Benefits

IRB#: 05-07-22-03

Funding Source: National Heart Lung and Blood Institute

Summary of Trial:

Patients undergo MRI of the heart “pre” and more than “8 weeks post” biventricular device implantation to determine if biventricular devices are beneficial to patients with poor heart function.


Patients who are scheduled to be implanted with biventricular devices, or who are already implanted with a biventricular device and underwent a MRI of the heart pre-implant.


Patients whose devices are not determined safe to undergo MRI.
Patients with poor renal function (GFR<30 mL/min) who are not candidates for Gadolinium.
Pregnant patients

Clinical Trial Site:

Johns Hopkins Hospital
Blalock 5
600 N.Wolfe Street
Baltimore, Md. 21205


$150.00 for each MRI completed

Start Date:11-07-05

Anticipated End Date: 11-07-09