超声心动图对二尖瓣狭窄的诊断、外科手术的选择及疗效判断、术后再狭窄的随访以及与非二尖瓣狭窄所致的心尖部舒张期杂音的鉴别等方面皆有较肯定的临床价值;对本病哑型的诊断更有独到之处。近年来在瓣膜口径的预计方面虽有分岐意 Echocardiography is more clinically relevant to the diagnosis of mitral stenosis, choice of surgical procedure and judgment of curative effect, follow-up of postoperative restenosis, and identification of apical diastolic murmur caused by non-mitral stenosis Value; diagnosis of the disease dumb type more unique. In recent years, although there are differences in the design of the valve caliber meaning