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Appropriateness of use criteria (AUC) for transthoracic echocardiography (TTE) have been developed by American cardiology associations to help avoid unnecessary scans by formalizing indications for imaging. There are 98 indications classified as either appropriate (A), inappropriate (I), or uncertain (U). AUC may allow better targeting of limited resources, but they have not been tested systematically outside the USA.

Appropriateness of use criteria for transthoracic echocardiography: are they relevant outside the USA?