書誌事項
- タイトル別名
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- A backscattering techniques for measurement of ultrasonic attenuation constant of scattering medium
- コウホウ サンランハ ノ ソクテイ ニ ヨル サンラン バイシツ ノ チョウオ
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抄録
There are some studies on measurement of ultrasonic attenuation constant of human tissues using RF waveforms of echo signals obtained by medical ultrasonic equipment. It seems to be more useful to measure the attenuation using video signal of conventional medical ultrasonic B-mode image. However, there are some difficulties to measure the attenuation in vivo, because of the effects of sensitivity time control (STC) and ultrasonic beam pattern. We devised a technique for evaluating the attenuation constant in ultrasonic scattering medium form its echo signal level compared with that from the reference phantom with attenuation constant measured beforehand, without above mentioned effects. In this paper, the principle of this technique is described, and it is also shown that the technique is successful for attenuation constant measurement through the experiments carried out by using the samples made of fine glass balls dispersed in agar as tissue phantom. Application of this technique to in vivo measurement of human tissue would give valuable information to clinical examination.
収録刊行物
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- 日本音響学会誌
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日本音響学会誌 41 (11), 770-776, 1985
一般社団法人 日本音響学会
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詳細情報 詳細情報について
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- CRID
- 1390001206565640960
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- NII論文ID
- 110003108641
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- NII書誌ID
- AN00186234
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- ISSN
- 24322040
- 03694232
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- NDL書誌ID
- 3061320
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可