RecruitingDiagnostic testA Study of Cardiac Magnetic Resonance Imaging (CMR) for Evaluating Catheter-Associated Right Atrial Clot in People With CancerThe researchers are doing this study to see how well cardiac magnetic resonance imaging (CMR) scans can be used to examine the properties of central venous catheter-associated right atrial clot (RA clot). This could help doctors decide on the best treatment options.