Cardiotoxicity Assessment Through Comprehensive Heart Imaging to Predict Heart Failure

This study is using advanced heart imaging (including cardiac MRI) in people who were treated for childhood cancer with a type of chemotherapy called anthracyclines (e.g., doxorubicin), to detect early signs of heart damage before symptoms of heart failure develop. **You may be eligible if:** - You are between 13 and 39 years old - You were diagnosed with cancer before age 22 - You received anthracycline chemotherapy and it has been at least two years since your cancer diagnosis **You may NOT be eligible if:** - You have a metallic implant (like a pacemaker or certain surgical clips) that is not compatible with MRI - You have a history of significant congenital heart disease - You are pregnant at the time of enrollment - You have a medical or psychiatric condition that would prevent you from completing the heart MRI safely without sedation Talk to your doctor to see if this trial is right for you.