Background: In patients with significant mitral regurgitation (MR) undergoing transcatheter edge-to-edge repair (M-TEER). assessment of mitral valve (MV) anatomy is essential. While transthoracic echocardiography (TTE) is the initial diagnostic tool. transesophageal echocardiography (TOE) provides better anatomical details. https://atome3des.shop/product-category/formation/