河西 千広

Chihiro KASAI

アロカ株式会社

Aloka Co., Ltd.

キーワード :

This paper describes the side lobe and the main lobe characteristics of various kinds of transducers which are used for detecting Doppler information from blood flow. These characteristics are very important since the echo signals from blood are much smaller than those from tissues and the latter signals often hamper the detection of blood flow signals.