Arterial Stiffening as a Predictor for Diastolic Cardiac Dysfunction and HFpEF

This study investigates whether stiff arteries are an early warning sign of a type of heart failure where the heart pumps normally but cannot relax properly (called HFpEF or diastolic dysfunction). Researchers will use imaging tests to study the link between arterial stiffness and this condition. **You may be eligible if...** - You are over 60, OR have high blood pressure, diabetes, atrial fibrillation, chronic kidney disease, or obesity (BMI ≥ 30) - You have been referred for cardiac imaging **You may NOT be eligible if...** - Your heart's pumping function is significantly reduced (ejection fraction below 50%) - You have significant heart valve disease or prior valve surgery - You have serious respiratory conditions that affect heart imaging Talk to your doctor to see if this trial is right for you.