Early Detection of Concealed Cardiac Amyloidosis Using AI-ECG and CT-Derived Extracellular Volume in Patients With Atrial Fibrillation

This study investigates the clinical efficacy of a non-invasive screening protocol using AI-ECG and CT-ECV analysis for cardiac amyloidosis. The study targets on atrial fibrillation(AF) patients with "red-flag" indicators. Participants are randomized 1:1 into either an early screening or usual care group. * Early screening group : AI- ECG and/or CT-ECV analysis + AF treatment * Usual care group : AF treatment Both groups followed for 2 years to compare CA detection rates and clinical outcomes.