JP2019013454A - 超音波プローブ及び超音波診断装置 - Google Patents
超音波プローブ及び超音波診断装置 Download PDFInfo
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- A61B8/44—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device
- A61B8/4483—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device characterised by features of the ultrasound transducer
- A61B8/4488—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device characterised by features of the ultrasound transducer the transducer being a phased array
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- A61B8/52—Devices using data or image processing specially adapted for diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/5207—Devices using data or image processing specially adapted for diagnosis using ultrasonic, sonic or infrasonic waves involving processing of raw data to produce diagnostic data, e.g. for generating an image
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- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/88—Sonar systems specially adapted for specific applications
- G01S15/89—Sonar systems specially adapted for specific applications for mapping or imaging
- G01S15/8906—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques
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- G01S15/88—Sonar systems specially adapted for specific applications
- G01S15/89—Sonar systems specially adapted for specific applications for mapping or imaging
- G01S15/8906—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques
- G01S15/8909—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques using a static transducer configuration
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- G01S15/88—Sonar systems specially adapted for specific applications
- G01S15/89—Sonar systems specially adapted for specific applications for mapping or imaging
- G01S15/8906—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques
- G01S15/8959—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques using coded signals for correlation purposes
- G01S15/8963—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques using coded signals for correlation purposes using pulse inversion
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- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
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- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/52017—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00 particularly adapted to short-range imaging
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Abstract
【解決手段】実施形態の超音波プローブは、振動素子と、位相反転処理部と、遅延処理部とを備える。振動素子は、第1超音波の反射波を受信することにより第1エコー信号を発生し、前記第1超音波の位相を反転させた超音波に相当する第2超音波の反射波を受信することにより第2エコー信号を発生する。位相反転処理部は、前記第2エコー信号の位相を反転させる。遅延処理部は、前記第1エコー信号および位相反転後の前記第2エコー信号それぞれを遅延させる。
【選択図】図2
Description
まず、実施形態に係る超音波プローブが適用された超音波診断装置の構成の一例について説明する。図1は、実施形態に係る超音波診断装置100の構成の一例を説明するための図である。図1に示すように、実施形態に係る超音波診断装置100は、超音波プローブ1と、モニタ2と、入力装置3と、装置本体10とを有する。
21 振動素子
24 位相反転処理回路
25 アナログ遅延回路
Claims (9)
- 第1超音波の反射波を受信することにより第1エコー信号を発生し、前記第1超音波の位相を反転させた超音波に相当する第2超音波の反射波を受信することにより第2エコー信号を発生する振動素子と、
前記第2エコー信号の位相を反転させる位相反転処理部と、
前記第1エコー信号および位相反転後の前記第2エコー信号それぞれを遅延させる遅延処理部と、
を備える、超音波プローブ。 - 前記位相反転処理部および前記遅延処理部は、前記振動素子毎に設けられる、請求項1に記載の超音波プローブ。
- 前記位相反転処理部は、前記第1エコー信号および位相反転後の前記第2エコー信号それぞれを増幅させ、
前記遅延処理部は、前記位相反転処理部から出力された第1エコー信号及び位相反転後の前記第2エコー信号それぞれを遅延させる、請求項1又は2に記載の超音波プローブ。 - 複数の前記振動素子に対応する、遅延後の複数の前記第1エコー信号を加算することで第1加算信号を発生し、複数の前記振動素子に対応する、位相反転および遅延後の複数の前記第2エコー信号を加算することで第2加算信号を発生する加算部を備える、請求項1乃至3のうちいずれか1つに記載の超音波プローブ。
- 前記第1加算信号および前記第2加算信号を用いた減算処理により、画像信号を発生する減算部を備えた、請求項4に記載の超音波プローブ。
- 前記遅延処理部は、アナログ回路であり、
前記超音波プローブは、
電源回路と、
前記電源回路、前記位相反転処理部および前記遅延処理部を接続する配線と、
を備え、
前記電源回路は、前記配線を介して、前記位相反転処理部および前記遅延処理部を動作させる電圧を、前記位相反転処理部および前記遅延処理部に印加する、請求項1乃至5のうちいずれか1つに記載の超音波プローブ。 - 前記遅延処理部は、アナログ回路であり、
前記超音波プローブは、
電源回路と、
前記電源回路、前記位相反転処理部、前記遅延処理部および前記加算部を接続する配線と、
を備え、
前記電源回路は、前記配線を介して、前記位相反転処理部、前記遅延処理部および前記加算部を動作させる電圧を、前記位相反転処理部、前記遅延処理部および前記加算部に印加する、請求項4又は5に記載の超音波プローブ。 - 前記遅延処理部による遅延を制御する制御信号であって、周期的に波形が変化するデジタル形式の制御信号を前記遅延処理部に送信する制御部を備える、請求項1乃至7のうちいずれか1つに記載の超音波プローブ。
- 請求項4に記載の超音波プローブと、
前記第1加算信号および前記第2加算信号を用いた減算処理により、画像信号を発生する減算部と、
を備えた超音波診断装置。
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JP2020010874A (ja) * | 2018-07-19 | 2020-01-23 | 株式会社日立製作所 | 超音波診断装置及び電子回路 |
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JP7313944B2 (ja) * | 2019-07-18 | 2023-07-25 | キヤノンメディカルシステムズ株式会社 | 超音波プローブ及び超音波診断装置 |
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US20110172537A1 (en) * | 2010-01-12 | 2011-07-14 | Kabushiki Kaisha Toshiba | Ultrasound probe and ultrasound diagnostic apparatus |
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JP2003230559A (ja) * | 2002-02-08 | 2003-08-19 | Toshiba Corp | 超音波診断装置 |
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US20050131299A1 (en) * | 2003-12-10 | 2005-06-16 | Brent Robinson | Differential partial beamforming |
JP2007296131A (ja) * | 2006-04-28 | 2007-11-15 | Toshiba Corp | 超音波プローブおよび超音波診断装置 |
US20110172537A1 (en) * | 2010-01-12 | 2011-07-14 | Kabushiki Kaisha Toshiba | Ultrasound probe and ultrasound diagnostic apparatus |
JP2011142931A (ja) * | 2010-01-12 | 2011-07-28 | Toshiba Corp | 超音波プローブ |
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JP2020010874A (ja) * | 2018-07-19 | 2020-01-23 | 株式会社日立製作所 | 超音波診断装置及び電子回路 |
JP7008591B2 (ja) | 2018-07-19 | 2022-01-25 | 富士フイルムヘルスケア株式会社 | 超音波診断装置及び電子回路 |
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