JP4652731B2 - 超音波診断装置 - Google Patents
超音波診断装置 Download PDFInfo
- Publication number
- JP4652731B2 JP4652731B2 JP2004195245A JP2004195245A JP4652731B2 JP 4652731 B2 JP4652731 B2 JP 4652731B2 JP 2004195245 A JP2004195245 A JP 2004195245A JP 2004195245 A JP2004195245 A JP 2004195245A JP 4652731 B2 JP4652731 B2 JP 4652731B2
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- signal
- ultrasonic diagnostic
- diagnostic apparatus
- frequency difference
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- 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
- G01S15/895—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques characterised by the transmitted frequency spectrum
- G01S15/8954—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques characterised by the transmitted frequency spectrum using a broad-band spectrum
-
- G—PHYSICS
- G01—MEASURING; TESTING
- 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
- 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
- G01S7/52053—Display arrangements
- G01S7/52057—Cathode ray tube displays
- G01S7/5206—Two-dimensional coordinated display of distance and direction; B-scan display
- G01S7/52066—Time-position or time-motion displays
-
- G—PHYSICS
- G01—MEASURING; TESTING
- 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
- G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
- G01S15/06—Systems determining the position data of a target
- G01S15/08—Systems for measuring distance only
- G01S15/32—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
- G01S15/34—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal
-
- G—PHYSICS
- G01—MEASURING; TESTING
- 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
- 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
- G01S7/52023—Details of receivers
- G01S7/5203—Details of receivers for non-pulse systems, e.g. CW systems
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Acoustics & Sound (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Description
Claims (8)
- 搬送波信号を変調信号により周波数変調し、変調送信信号を生成する送信部と、
前記変調送信信号に対応した超音波を生体に送波して当該生体から超音波を受波することにより受信信号を得る超音波送受部と、
前記受信信号を前記変調送信信号を用いて復調し、これにより送受信信号間における周波数差を反映させた周波数差信号を得る受信部と、
前記変調送信信号の単位時間当たりの周波数変化が一定となる期間内における前記周波数差信号の周波数スペクトラムの時間変化に基づいて生体内組織の速度を求める速度演算部と、
を有することを特徴とする超音波診断装置。 - 請求項1に記載の超音波診断装置において、
前記速度演算部は、前記周波数スペクトラムに含まれる少なくとも一つの周波数差成分の時間変化に基づいて、その周波数差成分に対応する組織の速度を算出する、
ことを特徴とする超音波診断装置。 - 請求項2に記載の超音波診断装置において、
前記速度演算部は、前記周波数差成分を複素表現した信号の時間変化から前記速度を算出する、
ことを特徴とする超音波診断装置。 - 請求項3に記載の超音波診断装置において、
前記速度演算部は、異なる時刻に対応する二つの前記周波数スペクトラムの差を求める自己相関回路を含む、
ことを特徴とする超音波診断装置。 - 請求項1に記載の超音波診断装置において、
前記周波数差信号の周波数スペクトラムから得られる送受信信号間における周波数差に基づいて生体内組織の位置を求める位置演算部をさらに有する、
ことを特徴とする超音波診断装置。 - 請求項5に記載の超音波診断装置において、
前記位置演算部は、前記周波数スペクトラムに含まれる少なくとも一つの周波数差成分に基づいて、その周波数差成分に対応する組織の位置を算出する、
ことを特徴とする超音波診断装置。 - 請求項1から6のいずれか1項に記載の超音波診断装置において、
前記送受波器の周波数特性を補償するように前記変調送信信号の振幅を制御する周波数特性補償部をさらに有する、
ことを特徴とする超音波診断装置。 - 請求項1から7のいずれか1項に記載の超音波診断装置において、
前記変調信号は、鋸歯状波である、
ことを特徴とする超音波診断装置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004195245A JP4652731B2 (ja) | 2004-07-01 | 2004-07-01 | 超音波診断装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004195245A JP4652731B2 (ja) | 2004-07-01 | 2004-07-01 | 超音波診断装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006014916A JP2006014916A (ja) | 2006-01-19 |
JP4652731B2 true JP4652731B2 (ja) | 2011-03-16 |
Family
ID=35789670
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004195245A Expired - Fee Related JP4652731B2 (ja) | 2004-07-01 | 2004-07-01 | 超音波診断装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP4652731B2 (ja) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4771166B2 (ja) * | 2006-09-29 | 2011-09-14 | サクサ株式会社 | Fm−cwレーダ装置 |
JP5283888B2 (ja) * | 2006-11-02 | 2013-09-04 | 株式会社東芝 | 超音波診断装置 |
US8100832B2 (en) | 2007-04-27 | 2012-01-24 | Hitachi Aloka Medical, Ltd. | Ultrasound diagnostic apparatus |
JP5260897B2 (ja) * | 2007-06-22 | 2013-08-14 | 日立アロカメディカル株式会社 | 超音波診断装置 |
JP5291952B2 (ja) * | 2008-03-03 | 2013-09-18 | 日立アロカメディカル株式会社 | 超音波診断装置 |
JP5297082B2 (ja) * | 2008-05-12 | 2013-09-25 | 日立アロカメディカル株式会社 | 超音波診断装置 |
JP5629052B2 (ja) | 2008-06-03 | 2014-11-19 | 日立アロカメディカル株式会社 | 超音波診断装置 |
JP5654198B2 (ja) | 2008-06-16 | 2015-01-14 | 日立アロカメディカル株式会社 | 超音波診断装置 |
JP5349173B2 (ja) * | 2008-07-14 | 2013-11-20 | 株式会社東芝 | 超音波診断装置及び超音波診断装置制御プログラム |
JP5325503B2 (ja) * | 2008-08-27 | 2013-10-23 | 日立アロカメディカル株式会社 | 超音波診断装置 |
WO2020129197A1 (ja) * | 2018-12-19 | 2020-06-25 | 日本電気株式会社 | 情報処理装置、装着型機器、情報処理方法及び記憶媒体 |
CN110220976B (zh) * | 2019-06-02 | 2022-04-15 | 朱爱华 | 一种基于调频连续波超声成像系统及检测方法 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000175926A (ja) * | 1998-12-14 | 2000-06-27 | Toshiba Corp | 超音波治療装置 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03162837A (ja) * | 1989-11-22 | 1991-07-12 | Yokogawa Medical Syst Ltd | 医用超音波装置 |
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- 2004-07-01 JP JP2004195245A patent/JP4652731B2/ja not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000175926A (ja) * | 1998-12-14 | 2000-06-27 | Toshiba Corp | 超音波治療装置 |
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JP2006014916A (ja) | 2006-01-19 |
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