JP4190530B2 - 超音波診断装置 - Google Patents
超音波診断装置 Download PDFInfo
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- JP4190530B2 JP4190530B2 JP2005278749A JP2005278749A JP4190530B2 JP 4190530 B2 JP4190530 B2 JP 4190530B2 JP 2005278749 A JP2005278749 A JP 2005278749A JP 2005278749 A JP2005278749 A JP 2005278749A JP 4190530 B2 JP4190530 B2 JP 4190530B2
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/06—Measuring blood flow
-
- 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
- G01S15/8979—Combined Doppler and pulse-echo imaging systems
-
- 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
- G01S7/52071—Multicolour displays; using colour coding; Optimising colour or information content in displays, e.g. parametric imaging
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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Description
Claims (10)
- 超音波送受波手段から被検体に対して送波される超音波を発生させるための超音波パルスを送信し、前記被検体において反射した超音波に基づき、前記超音波送受波手段から出力されるエコー信号を受信する超音波送受信手段と、
前記エコー信号に基づき、前記被検体における血流動態に基づく所定の検出値を算出する血流動態検出手段と、
前記所定の検出値を輝度値に変換する輝度値変換手段と、
一の輝度値を他の輝度値に変換するための輝度値変換情報を有する輝度値置換手段と、
前記輝度値変換手段から出力される前記輝度値のうち、一のフレームにおける第1の輝度値と、前記一のフレームの直前のフレームにおける第2の輝度値との比較を行う比較手段とを有し、
前記比較手段は、前記比較結果と、前記輝度値置換情報とに基づき、前記第1の輝度値、または、前記第2の輝度値の絶対値以下の輝度値である第3の輝度値のいずれかを出力することを特徴とする超音波診断装置。 - 前記比較手段は、前記第1の輝度値が前記第2の輝度値より大きいという比較結果を得た場合には、前記第1の輝度値を出力し、前記第1の輝度値が前記第2の輝度値以下であるという比較結果を得た場合には、前記輝度値置換情報に基づいて前記第2の輝度値を前記第3の輝度値に置換し、前記第3の輝度値を出力することを特徴とする請求項1に記載の超音波診断装置。
- 前記比較手段は、前記第1の輝度値と前記第2の輝度値との符号が異なるという比較結果を得た場合、または、前記第1の輝度値と前記第2の輝度値との符号が同一であり、かつ、前記第1の輝度値の絶対値が前記第2の輝度値の絶対値より大きいという比較結果を得た場合には、前記第1の輝度値を出力し、前記第1の輝度値と前記第2の輝度値との符号が同一であり、かつ、前記第1の輝度値の絶対値が前記第2の輝度値の絶対値以下であるという比較結果を得た場合には、前記輝度値置換情報に基づいて前記第2の輝度値を前記第3の輝度値に置換し、前記第3の輝度値を出力することを特徴とする請求項1に記載の超音波診断装置。
- 超音波送受波手段から被検体に対して送波される超音波を発生させるための超音波パルスを送信し、前記被検体において反射した超音波に基づき、前記超音波送受波手段から出力されるエコー信号を受信する超音波送受信手段と、
前記エコー信号に基づき、前記被検体における血流動態に基づく所定の検出値を算出する血流動態検出手段と、
前記所定の検出値を輝度値に変換する輝度値変換手段と、
前記輝度値のうち、一のフレームにおける第1の輝度値と、前記一のフレームの直前のフレームにおける第2の輝度値とを記憶すると共に、前記第1の輝度値と、前記第2の輝度値とを出力する記憶手段と、
前記記憶手段から出力される前記第2の輝度値を前記第2の輝度値以下の輝度値である第3の輝度値に置換し、前記第3の輝度値を出力する輝度値置換手段と、
前記記憶手段から出力される前記第1の輝度値と、前記輝度値置換手段から出力される前記第3の輝度値との比較を行い、一方の輝度値に対して大きな輝度値を有する他方の輝度値を出力する比較手段と、
を有することを特徴とする超音波診断装置。 - 前記比較手段は、前記輝度値置換情報に基づいて前記第2の輝度値を前記第3の輝度値に置換する場合に、前記第2の輝度値の増加に伴い、前記第3の輝度値の減衰量を増加させることを特徴とする請求項2乃至請求項4のいずれか一に記載の超音波診断装置。
- 前記輝度値置換手段が有する前記輝度値変換情報は、書き換え可能なデータファイルとして構成されることを特徴とする請求項1乃至請求項5のいずれか一に記載の超音波診断装置。
- 前記データファイルは、複数のデータファイルからなることを特徴とする請求項6に記載の超音波診断装置。
- 超音波送受波手段から被検体に対して送波される超音波を発生させるための超音波パルスを送信し、前記被検体において反射した超音波に基づき、前記超音波送受波手段から出力されるエコー信号を受信する超音波送受信手段と、
前記エコー信号に基づき、前記被検体における血流動態に基づく所定の検出値を算出する血流動態検出手段と、
前記所定の検出値を輝度値に変換する輝度値変換手段と、
前記輝度値変換手段から出力される前記輝度値のうち、一のフレームにおける第1の輝度値と、前記一のフレームの直前のフレームにおける第2の輝度値との比較を行う比較手段とを有する超音波診断装置であって、
前記超音波診断装置は、前記第2の輝度値を前記第2の輝度値の絶対値以下の輝度値である第3の輝度値に変換するための対照表を有するルックアップテーブルを具備し、
前記比較手段は、前記比較結果と、前記対照表とに基づき、前記第1の輝度値または第3の輝度値のいずれかを出力することを特徴とする超音波診断装置。 - 前記ルックアップテーブルが有する前記対照表は、書き換え可能なデータファイルとして構成されることを特徴とする請求項8に記載の超音波診断装置。
- 前記データファイルは、複数のデータファイルからなることを特徴とする請求項9に記載の超音波診断装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005278749A JP4190530B2 (ja) | 2005-09-26 | 2005-09-26 | 超音波診断装置 |
CN2006800354813A CN101272737B (zh) | 2005-09-26 | 2006-04-26 | 超声波诊断装置 |
PCT/JP2006/308737 WO2007034590A1 (ja) | 2005-09-26 | 2006-04-26 | 超音波診断装置 |
EP06745715A EP1929953B1 (en) | 2005-09-26 | 2006-04-26 | Ultrasonograph |
US12/054,888 US20080208058A1 (en) | 2005-09-26 | 2008-03-25 | Ultrasound diagnostic apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005278749A JP4190530B2 (ja) | 2005-09-26 | 2005-09-26 | 超音波診断装置 |
Publications (2)
Publication Number | Publication Date |
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JP2007082955A JP2007082955A (ja) | 2007-04-05 |
JP4190530B2 true JP4190530B2 (ja) | 2008-12-03 |
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JP2005278749A Active JP4190530B2 (ja) | 2005-09-26 | 2005-09-26 | 超音波診断装置 |
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Country | Link |
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US (1) | US20080208058A1 (ja) |
EP (1) | EP1929953B1 (ja) |
JP (1) | JP4190530B2 (ja) |
CN (1) | CN101272737B (ja) |
WO (1) | WO2007034590A1 (ja) |
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Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH069556A (ja) | 1992-06-25 | 1994-01-18 | Mitsubishi Petrochem Co Ltd | マレイミドの製造方法 |
JPH08164138A (ja) * | 1994-12-16 | 1996-06-25 | Shimadzu Corp | 超音波診断装置 |
JP3887040B2 (ja) * | 1996-09-05 | 2007-02-28 | 株式会社東芝 | 超音波診断装置 |
US5897502A (en) * | 1996-11-26 | 1999-04-27 | Siemens Medical Systems, Inc. | Persistence for ultrasonic flow imaging |
JP3732613B2 (ja) * | 1997-04-15 | 2006-01-05 | フクダ電子株式会社 | 超音波診断装置 |
US5865752A (en) * | 1997-05-07 | 1999-02-02 | General Electric Company | Method and apparatus for ultrasound imaging using normalized difference between successive frames |
JPH1189837A (ja) * | 1997-09-19 | 1999-04-06 | Fujitsu Ltd | 超音波診断装置 |
JP3290625B2 (ja) | 1998-03-26 | 2002-06-10 | フクダ電子株式会社 | 超音波診断装置 |
-
2005
- 2005-09-26 JP JP2005278749A patent/JP4190530B2/ja active Active
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2006
- 2006-04-26 CN CN2006800354813A patent/CN101272737B/zh not_active Expired - Fee Related
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2008
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EP1929953A1 (en) | 2008-06-11 |
EP1929953B1 (en) | 2012-06-27 |
CN101272737B (zh) | 2012-05-09 |
JP2007082955A (ja) | 2007-04-05 |
US20080208058A1 (en) | 2008-08-28 |
WO2007034590A1 (ja) | 2007-03-29 |
CN101272737A (zh) | 2008-09-24 |
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