JP5450065B2 - 脳血流画像化、及びマイクロバブルを用いた血餅溶解をする超音波システム - Google Patents
脳血流画像化、及びマイクロバブルを用いた血餅溶解をする超音波システム Download PDFInfo
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Description
Claims (16)
- 頭蓋の血管の閉塞を治療するための卒中治療システムであって、
超音波トランスデューサアレイを被検体の頭部と音響的に接触させて保持するトランスデューサアレイヘッドセットと、
前記超音波トランスデューサアレイに結合され、前記被検体の前記頭蓋の血流の画像を生成する画像プロセッサと、
前記画像プロセッサに結合され、前記頭蓋の血管系の画像を生成する画像ディスプレイとを有し、
前記画像プロセッサがドップラプロセッサを有し、
前記ドップラプロセッサが、速度ドップラ画像及びパワードップラ画像のうちの少なくとも1つを生成し、
超音波トランスデューサアレイは、前記被検体の前記頭蓋の閉塞部に治療ビームを向けるため、治療モードで更に動作可能であり、
前記治療ビームが、前記閉塞部においてマイクロバブルを破裂させることができる超音波ビームを含み、
前記治療モードにおいて、前記画像ディスプレイに、前記治療ビームのベクトル経路を示すベクトルグラフィックが表示され、
前記画像ディスプレイにおいて、前記ベクトルグラフィックが前記閉塞部に焦点合わせされることにより、前記閉塞部に治療ビームが向けられる、卒中治療システム。 - 前記トランスデューサアレイヘッドセットが、第1超音波トランスデューサアレイを前記頭部の一方の側と音響的に接触させて保持し、
前記ヘッドセットにより、前記頭部の他方の側と音響的な接触を維持される第2トランスデューサアレイを更に含む、請求項1に記載の卒中治療システム。 - 頭蓋の血管の閉塞を治療する卒中治療システムであって、
超音波トランスデューサアレイを被検体の頭部と音響的に接触させて保持するトランスデューサアレイヘッドセットと、
該超音波トランスデューサアレイに結合され、前記被検体の前記頭蓋の血流の画像を生成する画像プロセッサと、
前記画像プロセッサに結合され、前記頭蓋の血管系の画像を生成する画像ディスプレイと、
前記トランスデューサアレイに結合され、前記超音波トランスデューサアレイに超音波ビームを生成させるように作動する送信機とを有し、
前記超音波ビームの画像化及び供給が共通の超音波トランスデューサアレイによりなされ、
超音波トランスデューサアレイは、前記被検体の前記頭蓋の閉塞部に治療ビームを向けるため、治療モードで更に動作可能であり、
前記治療ビームが、前記閉塞部においてマイクロバブルを破裂させることができる超音波ビームを含み、
前記治療モードにおいて、前記画像ディスプレイに、前記治療ビームのベクトル経路を示すベクトルグラフィックが表示され、
前記画像ディスプレイにおいて、前記ベクトルグラフィックが前記閉塞部に焦点合わせされることにより、前記閉塞部に治療ビームが向けられる、システム。 - 前記超音波ビームの画像化及び供給が、ともに被検体に対する診断超音波エネルギー供給の制限内でなされる、請求項3に記載の卒中治療システム。
- 前記送信機が、前記トランスデューサアレイに対するパルス幅変調及びデューティサイクル変調信号のうちの少なくとも1つを適用するように動作する、請求項3に記載の卒中治療システム。
- 前記送信機は、前記超音波トランスデューサアレイがドップラ画像及びBモード画像のうちの少なくとも1つのためにビームを送信するように更に動作する、請求項3に記載の卒中治療システム。
- 前記送信機は、前記頭蓋における所与の側面の次元を示す画像化領域に渡って画像化するビームを送信するように更に動作し、
前記治療ビームが、前記所与の側面の次元以外の側面の次元を示す、請求項6に記載の卒中治療システム。 - 前記送信機は、前記頭蓋における所与の空間的領域を占有する画像化領域に渡って画像化ビームを送信するように動作し、
前記治療ビームが、前記所与の空間的領域の一部に渡って送信される、請求項6に記載の卒中治療システム。 - 前記超音波トランスデューサアレイが2次元アレイのトランスデューサ素子を有し、
前記所与の空間的領域が容積測定の領域である、請求項8に記載の卒中治療システム。 - 前記2次元アレイが、前記頭部の一方の側と音響的に接触して保持され、
前記頭部の他方の側と、前記ヘッドセットにより音響的に接触して保持される第2の2次元アレイを更に有する、請求項9に記載の卒中治療システム。 - 前記第1の2次元アレイが、前記頭部の左側と前記頭蓋の中心との間の頭蓋距離の大部分に渡って画像化ビームをスキャンし、
前記第2の2次元アレイが、前記頭部の右側と前記頭蓋の中心との間の頭蓋距離の大部分に渡って画像化ビームをスキャンする、請求項10に記載の卒中治療システム。 - 制御部を含む超音波装置の作動方法において、前記制御部が、
被検体の頭部の反対側に配置され、前記頭部と音響的に接触される第1及び第2のトランスデューサアレイを含むヘッドセットを用いて、前記トランスデューサアレイの少なくとも1つから受信される信号から、頭蓋内のフローの超音波画像を生成するステップと、
前記被検体の血流に注入後のマイクロバブルを含む頭蓋内のフローの超音波画像を生成するステップと、
頭蓋内のフローの前記超音波画像における狭窄の存在に関する入力を受信するステップと、
前記狭窄に近接したマイクロバブルに対して、治療超音波ビームが向けられるよう、前記トランスデューサアレイのうちの少なくとも1つを制御するステップとを有し、
前記治療超音波ビームが向けられるよう制御するステップが、前記狭窄に近接したマイクロバブルが破壊されるよう、前記トランスデューサアレイのうちの少なくとも1つを制御するステップを更に含み、
前記治療超音波ビームが向けられるよう制御するステップにおいて、前記治療超音波ビームのベクトル経路を示すベクトルグラフィックが表示され、前記ベクトルグラフィックが前記狭窄に焦点合わせされることにより、前記狭窄に前記治療超音波ビームが向けられるよう、前記トランスデューサアレイのうちの少なくとも1つが制御される、超音波装置の作動方法。 - 前記治療超音波ビームが向けられるよう制御するステップが、前記狭窄に近接したマイクロバブルに対してペンシルビームが送信されるよう、前記トランスデューサアレイのうちの少なくとも1つを制御するステップを更に含む、請求項12に記載の作動方法。
- 前記治療超音波ビームが向けられるよう制御するステップが、前記狭窄に近接したマイクロバブルが振動されるよう、前記トランスデューサアレイのうちの少なくとも1つを制御するステップを更に含む、請求項12に記載の作動方法。
- 前記治療超音波ビームが向けられるよう制御するステップが、治療超音波ビームが診断超音波に対する制限内のエネルギーレベルで前記狭窄に近接したマイクロバブルに送信されるよう、前記トランスデューサアレイのうちの少なくとも1つを制御するステップを更に含む、請求項12に記載の作動方法。
- 前記トランスデューサが、二次元トランスデューサアレイであり、
前記超音波画像を生成するステップが3次元超音波画像を生成するステップを更に含む、請求項12に記載の作動方法。
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2007
- 2007-08-03 CN CN200780029775XA patent/CN101500650B/zh not_active Expired - Fee Related
- 2007-08-03 EP EP07825989.2A patent/EP2051777B1/en not_active Not-in-force
- 2007-08-03 JP JP2009523403A patent/JP5450065B2/ja not_active Expired - Fee Related
- 2007-08-03 US US12/376,317 patent/US9630028B2/en not_active Expired - Fee Related
- 2007-08-03 WO PCT/IB2007/053073 patent/WO2008017997A2/en not_active Ceased
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Also Published As
| Publication number | Publication date |
|---|---|
| JP2010500084A (ja) | 2010-01-07 |
| WO2008017997A3 (en) | 2008-05-08 |
| WO2008017997A2 (en) | 2008-02-14 |
| CN101500650A (zh) | 2009-08-05 |
| US20170196465A1 (en) | 2017-07-13 |
| JP5684870B2 (ja) | 2015-03-18 |
| US10363012B2 (en) | 2019-07-30 |
| JP2014000431A (ja) | 2014-01-09 |
| CN101500650B (zh) | 2012-08-08 |
| US20100160779A1 (en) | 2010-06-24 |
| US9630028B2 (en) | 2017-04-25 |
| EP2051777A2 (en) | 2009-04-29 |
| EP2051777B1 (en) | 2019-01-16 |
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