Table 2.

Laboratory accreditation

	Examinations/year minimum	SIECVI certification	Modality	Training	Research
Level 1	≥500 TEE	One certified TTE head cardiologist	TTE	-	-
Level 2  Level 1 requirements  + level 2 requirements  + at least 1 specialty	≥1500 TTE+ETE or stress ≥200 examinations/year or vascular ≥200 examinations/year/area or pediatric ≥200 examinations/year	Two certified cardiologist One certified TTE head cardiologist One cardiologist with specialty certification	TTE + one specialty ETE or stress or vascular or pediatric	SIECVI students or fellow (at least 2/year)	Inherent publications and/or SIECVI multicenter study (at least 1/5 years)
Level 2 interventional  Level 2 requirement + interventional TEE	≥1500 TTE + ≥100 and interventional cardiology or in cardiac surgery	Two certified cardiologists One certified TTE head cardiologist One certified TEE cardiologist	TEE + interventional	see above

TTE=Transthoracic echocardiography, SIECVI=Società Italiana di Ecocardiografia e CardioVascular Imaging, TEE=Trans Esophageal Echocardiography