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ROC analyses of S′/RAAi for detection of diastolic dysfunction. Diastolic dysfunction was defined as a) end-diastolic elastance above the third quartile (>0.262 mmHg·mL−1) and b) end-diastolic pressure above the third quartile (>9 mmHg). RAAi: right atrial area indexed to body surface area; ROC: receiver operating characteristic; S′: lateral tricuspid annulus peak systolic velocity.
