《英文msh詞典》Ultrasonic Diagnoses
[入口詞] Ultrasonic Diagnoses
[主題詞] Ultrasonography
[英文釋義] The visualization of deep structures of the body by recording the reflections of echoes of pulses of ultrasonic waves directed into the tissues. Use of ultrasound for imaging or diagnostic purposes employs frequencies ranging from 1.6 to 10 megahertz.