ECHOGRAPHY
\ɛkˈɒɡɹəfi], \ɛkˈɒɡɹəfi], \ɛ_k_ˈɒ_ɡ_ɹ_ə_f_i]\
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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.
By DataStellar Co., Ltd