3.Describe the echocardiographic findings of the mitral stenosis 4.Describe the imaging diagnostic points of the cavernous hemangioma of the liver 5.Describe the CT/MRI signs of the horseshoe kidney 6.Differentiate the imaging points between the benign and malignant ulcer of the stomach 7.Describe the imaging diagnostic points of the renal stone 试卷(1) 参考答案及评分标准 -Please explain the terms in chinese (each 3 scores,total 30 scores) 1.ultrasound:振动频率每秒在20000HZ以上，超过人耳听觉阙值上限的声波。 2.Doppler effect:由于声源和接收体之间的相对运动而引起声波频率发生改变的现象 3.PW:脉冲波式，超声换能器即探头和主机的发射和接收是不连续的3. Describe the echocardiographic findings of the mitral stenosis 4. Describe the imaging diagnostic points of the cavernous hemangioma of the liver 5. Describe the CT/MRI signs of the horseshoe kidney 6. Differentiate the imaging points between the benign and malignant ulcer of the stomach 7. Describe the imaging diagnostic points of the renal stone 试卷 (1) 参考答案及评分标准 一、Please explain the terms in chinese (each 3 scores，total 30 scores) 1．ultrasound：振动频率每秒在20000HZ以上，超过人耳听觉阈值上限的声波。 2．Doppler effect：由于声源和接收体之间的相对运动而引起声波频率发生改变的现象 3. PW：脉冲波式,超声换能器即探头和主机的发射和接收是不连续的