The clinical trial compares the reproducibility and accuracy of cardiac tonometry-based portable systems that may detect early cardiac dysfunction (SphygmoCor® Xcel and Oscar 2™ ambulatory blood pressure monitor) at home and in the clinic to currently available screening tests for heart failure including echocardiogram (echo) and cardiovascular magnetic resonance (CMR). The SphygmoCor® Xcel and Oscar 2™ systems may help detect cardiac dysfunction earlier than other available screening tests because it can be self-administered outside of the clinic. This study aims to test the accuracy and practicality of these devices in the clinic setting and at home.

Primary Objective(s)

Validate the accuracy of ejection fraction, as measured using a tonometry-based system (SphygmoCor® Xcel), in the clinic setting, and determine the reproducibility (Oscar 2™) at home.

Secondary Objective(s)

Determine the cost-effectiveness of tonometry-based screening in the clinic setting and at home.

Inclusion Criteria:

• Previously enrolled in IRB# 14154.
• Able to understand and sign the study specific informed consent form (ICF).

Exclusion Criteria:

• Participants cannot be actively receiving cancer-directed therapy.
• Standard exclusion criteria for CMR imaging will be incorporated, and these include: implanted pacemaker or defibrillator, insulin pump, cochlear implant, central nervous system aneurismal clips, implanted neural stimulator, ocular foreign body (metal), other implanted medical devices (e.g.: drug infusion ports).