JP2006116329A - 体液の流れ又は組織の運動の画像を増強するための適応式時間フィルタリング - Google Patents
体液の流れ又は組織の運動の画像を増強するための適応式時間フィルタリング Download PDFInfo
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- JP2006116329A JP2006116329A JP2005333231A JP2005333231A JP2006116329A JP 2006116329 A JP2006116329 A JP 2006116329A JP 2005333231 A JP2005333231 A JP 2005333231A JP 2005333231 A JP2005333231 A JP 2005333231A JP 2006116329 A JP2006116329 A JP 2006116329A
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- 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
-
- 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
- G01S7/52073—Production of cursor lines, markers or indicia by electronic means
-
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/08—Detecting organic movements or changes, e.g. tumours, cysts, swellings
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/13—Tomography
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/48—Diagnostic techniques
- A61B8/488—Diagnostic techniques involving Doppler signals
-
- 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
- G01S7/52046—Techniques for image enhancement involving transmitter or receiver
-
- 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
- G01S7/52063—Sector scan display
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
Abstract
【解決手段】ドップラー情報信号又は時間シフト情報のエネルギー、パワー又は振幅が、時間持続性のために大きな重み係数又は小さい重み係数を選択するためにしきい値と比較される。“フラッシュ”信号又は強い動脈血の流れの信号の場合、小さい重み係数が選択され、前のフレームの間の平均値のフィードバックによって時間持続性の範囲を減少し、その結果、“フラッシュ”信号又は強い流れの信号の効果がその後のフレームのイメージング中に迅速に消散し、現フレームの間良好な時間解像度が保存される。低エネルギーの流れ信号においては、大きな重み係数が選択され、低エネルギー信号の信号対雑音を改善する。同様な効果は、所定のしきい値を超えないように信号をクリップすることによって達成できる。
【選択図】図2A
Description
y(n)=x(n)+a*y(n−1)
ここで、aは所望の持続性の程度に従ってユーザにより選択された固定定数であり、nはサンプル数である。
v = fD*c/2fO*cosθ
ここで、fDはドップラー周波数シフト、cは音の速度、fOは伝送周波数、θはドップラー角度又は超音波ビーム及び流れの方向によって定められる角度である。したがって、“平均速度”が本出願で言及されるときは常に、“平均周波数”又は“平均波長”をその代わりに使用することができる。このような変更は本発明の視野の範囲内である。
2.低エネルギーフロー信号(例えば、組織灌流又は静脈流による)
3.“フラッシュ”アーチファクト(例えば、トランスジューサの動き又は患者の動きによる)
4.低レベルシステム雑音
y(n)=x(n)+ashort*y(n−1)
y(n)=x(n)+along*y(n−1)
Claims (2)
- 身体内の体液の流れ又は組織の運動状態をイメージングする超音波イメージング装置の作動方法において、
ドップラー情報信号の第1シーケンスを提供する工程であって、シーケンス中の各信号が体液の流れ又は組織の運動からのドップラー情報を含む工程と、
前記ドップラー情報信号の第1シーケンスから、持続信号の対応する第2の時間シーケンスを生成する工程と、を有し、
前記生成工程は、零でない所定の値を超えないように、1以上のドップラー情報信号及び/又は持続信号の結合値をクリップする工程を有する方法。 - 身体内の体液の流れ又は組織の運動の状態をイメージングする超音波診断イメージング装置において、
ドップラー情報信号の第1シーケンスを提供する手段であって、シーケンス中の各信号は体液の流れ又は組織の運動からのドップラー情報を含む手段と、
前記ドップラー情報信号の第1シーケンスから、持続信号の対応する第2シーケンスを生成する手段と、を有し、
前記生成手段は、1以上のドップラー情報信号及び/又は持続信号及び/又はそれらから導かれる信号の結合値を、零でない所定の値を超えないようにクリップするクリップ手段を有する装置。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US36680394A | 1994-12-30 | 1994-12-30 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8521025A Division JPH10511588A (ja) | 1994-12-30 | 1995-12-15 | 体液の流れ又は組織の運動の画像を増強するための適応式時間フィルタリング |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006116329A true JP2006116329A (ja) | 2006-05-11 |
JP4182258B2 JP4182258B2 (ja) | 2008-11-19 |
Family
ID=23444589
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8521025A Pending JPH10511588A (ja) | 1994-12-30 | 1995-12-15 | 体液の流れ又は組織の運動の画像を増強するための適応式時間フィルタリング |
JP2005333231A Expired - Lifetime JP4182258B2 (ja) | 1994-12-30 | 2005-11-17 | 体液の流れ又は組織の運動の画像を増強するための適応式時間フィルタリング |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8521025A Pending JPH10511588A (ja) | 1994-12-30 | 1995-12-15 | 体液の流れ又は組織の運動の画像を増強するための適応式時間フィルタリング |
Country Status (4)
Country | Link |
---|---|
US (1) | US5899864A (ja) |
JP (2) | JPH10511588A (ja) |
AU (1) | AU4600496A (ja) |
WO (1) | WO1996021196A1 (ja) |
Cited By (2)
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WO2011036891A1 (ja) * | 2009-09-28 | 2011-03-31 | パナソニック株式会社 | 超音波診断装置 |
CN102335012A (zh) * | 2010-07-14 | 2012-02-01 | Ge医疗系统环球技术有限公司 | 超声诊断设备 |
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JP4117383B2 (ja) * | 2000-03-22 | 2008-07-16 | ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー | 超音波撮影装置 |
US7044913B2 (en) * | 2001-06-15 | 2006-05-16 | Kabushiki Kaisha Toshiba | Ultrasonic diagnosis apparatus |
JP3924263B2 (ja) * | 2003-06-09 | 2007-06-06 | ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー | 超音波診断装置 |
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CN100496409C (zh) * | 2005-08-02 | 2009-06-10 | 深圳迈瑞生物医疗电子股份有限公司 | 频谱多普勒血流速度的自动检测方法 |
CN101190132B (zh) * | 2006-11-28 | 2010-12-08 | 深圳迈瑞生物医疗电子股份有限公司 | 超声成像的预处理方法与装置 |
CN101416885B (zh) * | 2007-10-22 | 2012-10-17 | 深圳迈瑞生物医疗电子股份有限公司 | 用于超声成像系统的帧平均电路 |
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CN104680562A (zh) * | 2013-11-29 | 2015-06-03 | 通用电气公司 | 一种生成融合超声图像的方法、装置及超声机 |
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JP2019500155A (ja) | 2016-01-05 | 2019-01-10 | ニューラル アナリティクス、インコーポレイテッド | 一体型プローブ構造 |
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CN112512436B (zh) * | 2018-07-27 | 2024-03-08 | 皇家飞利浦有限公司 | 用于超声中的肺搏动检测的设备、系统和方法 |
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JP7343342B2 (ja) * | 2019-09-25 | 2023-09-12 | キヤノンメディカルシステムズ株式会社 | 超音波診断装置、及び画像処理装置 |
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-
1995
- 1995-12-15 WO PCT/US1995/016384 patent/WO1996021196A1/en active Application Filing
- 1995-12-15 AU AU46004/96A patent/AU4600496A/en not_active Abandoned
- 1995-12-15 JP JP8521025A patent/JPH10511588A/ja active Pending
-
1997
- 1997-04-09 US US08/827,863 patent/US5899864A/en not_active Expired - Lifetime
-
2005
- 2005-11-17 JP JP2005333231A patent/JP4182258B2/ja not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011036891A1 (ja) * | 2009-09-28 | 2011-03-31 | パナソニック株式会社 | 超音波診断装置 |
CN102335012A (zh) * | 2010-07-14 | 2012-02-01 | Ge医疗系统环球技术有限公司 | 超声诊断设备 |
US8870777B2 (en) | 2010-07-14 | 2014-10-28 | Ge Medical Systems Global Technology Company, Llc | Ultrasound diagnostic apparatus |
Also Published As
Publication number | Publication date |
---|---|
AU4600496A (en) | 1996-07-24 |
JP4182258B2 (ja) | 2008-11-19 |
US5899864A (en) | 1999-05-04 |
WO1996021196A1 (en) | 1996-07-11 |
JPH10511588A (ja) | 1998-11-10 |
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