患者，女，44岁。主述：心悸，气短，咳痰一年余，加重一个月前来就诊。查体：心率110次／分，律齐，心尖听诊区问及Ⅱ级舒张期杂音，肺动脉瓣听诊区第二心音亢进，肝助下2cm，下肢凹陷性水肿。X线胸片示二尖瓣型心影，心影轻度增大，肺动脉段路突出，两肺淤血状。彩色多普勒超 Patient, female, 44 years old. The main statement: heart palpitations, shortness of breath, coughing more than a year, aggravated a month ago to visit. Physical examination: heart rate 110 beats/minute, regularity, aptitude auscultation area and grade II diastolic murmur, aortic valve auscultation area second heart sound hyperthyroidism, liver assisted down 2cm, depressed edema of lower extremities. The chest X-ray shows the mitral heart shadow, the heart shadow increases slightly, the pulmonary artery segment protrudes, and both lungs are congested. Color Doppler ultrasound