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为探讨经食管超声心动图估价心脏碟瓣功能的价值,本文采用经胸壁及经食管二维彩色多普勒血流成像观测了38例侧倾碟瓣置换患者术后返流情况,结果表明,经食管超声心动图对二尖瓣位碟瓣返流检测的敏感性明显高于经胸壁超声心动图检查(71％:13％,P<0.001),且能更可靠地估价返流的程度和更准确地判断返流的类型;经食管彩色多酱勒血流成像时,探头紧靠左房提供了一个无阻挡的透声窗,克服了经胸壁探查时声能衰减以及人工瓣金属材料强烈反射及其声影位于左房的不足。因此,经食管超声心动图是检测二尖瓣位碟瓣返流的极有效手段。
In order to evaluate the value of transesophageal echocardiography in evaluating the function of heart disc, we retrospectively analyzed the postoperative regurgitation in 38 patients with disc flap replacement by transthoracic and transesophageal two-dimensional color Doppler flow imaging. The sensitivity of transesophageal echocardiography to mitral valve regurgitation was significantly higher than that of transthoracic echocardiography (71% vs 13%, P <0.001), and the reliability of the regurgitation and More accurately determine the type of reflux; transesophageal multi-sensor color flow imaging, the probe near the left atrium provides an unobstructed sound-absorbing window to overcome the acoustic attenuation through the chest wall exploration and artificial valve metal material strongly Reflection and its sound in the left atrium is not enough. Therefore, transesophageal echocardiography is a very effective means of detecting the disc valve regurgitation at the mitral valve.