Abstract 17246: Sensitivity and Specificity of Relative Sparing of Apical Longitudinal Strain for Detection of Systemic Light-Chain Amyloidosis versus Transthyretin Amyloidosis

Introduction: Relative apical sparing of longitudinal strain (RALS, the ratio of apical strain vs the rest of the heart) on echocardiography has been found to have high sensitivity and specificity ...