JP5462167B2 - Hifu治療中の組織変化モニタリングのためのシステム及び方法 - Google Patents
Hifu治療中の組織変化モニタリングのためのシステム及び方法 Download PDFInfo
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N7/00—Ultrasound therapy
- A61N7/02—Localised ultrasound hyperthermia
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/36—Image-producing devices or illumination devices not otherwise provided for
- A61B90/37—Surgical systems with images on a monitor during operation
- A61B2090/378—Surgical systems with images on a monitor during operation using ultrasound
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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- Surgical Instruments (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
- Measuring And Recording Apparatus For Diagnosis (AREA)
Description
ΔEF = EF(T1) - EF(T0) (7)
ΔEH = EH(T1) - EH(T0) (8)
次に、ブロック444によって表されるように、ΔESH、ΔEF、及びΔEHの最大を決定する。それは、組織変化の値に対応するとともに、図4のブロック424において、対応する視覚的インジケータに変換される、このエネルギー差(増加)である。
Claims (9)
- 治療領域の組織を処理するための装置であって、
組織の治療領域に対して位置決め可能であり、超音波エネルギーを放射し、超音波エネルギーを感知するように構成されたトランスデューサと、
前記トランスデューサに動作可能に接続され、複数の対象領域に対して、リアルタイムで、反射された後方散乱エネルギーにおける変化を近似的に算出するように構成されたコントローラと、を有し、
反射された後方散乱エネルギーの前記近似的に算出された変化は、組織変化値に相当し、
前記コントローラは、さらに、第1の治療領域に対するHIFU治療を提供する前に前記トランスデューサをパルスエコーモードで動作させように構成され、その場合、画像データが、前記トランスデューサによって第1の対象領域から受信される2D RF信号から生成され、
前記コントローラは、さらに、前記トランスデューサを治療モードで動作させるように構成され、その場合、HIFU治療が第1の組織治療領域に行われ、
前記コントローラは、さらに、HIFU治療を前記第1の組織治療領域に行った後に、パルスエコーモードで前記トランスデューサを動作させるように構成され、その場合、画像データが、前記トランスデューサによって前記第1の対象領域から受信される2D RF信号から生成され、
前記コントローラは、さらに、周波数領域における少なくとも2つの2D RF信号データセットを分析するように構成され、その場合、前記少なくとも2つの2D RF信号データセットが、前記HIFU治療の適用の前後における前記第1の対象領域から受信される2D RF信号に相当し、前記少なくとも2つの2D RF信号データセットの分析が、前記2D RF信号の各周波数帯域についての平均パワースペクトルを決定することを含み、前記複数の周波数帯域が、基本周波数帯域、サブハーモニクス周波数帯域、及びハーモニクス周波数帯域を含み、前記少なくとも2つの2D RF信号の複数の周波数帯域間の最大差が、前記対象領域についての反射された後方散乱エネルギーにおける前記近似的に算出された変化値に相当する、ことを特徴とする装置。 - 請求項1において、
前記複数の対象領域は、前記トランスデューサと前記トランスデューサの焦点区域の間の領域における前記組織と、前記トランスデューサの焦点区域を越えた領域に位置する前記組織と、前記トランスデューサの焦点区域に位置する前記組織と、を含むことを特徴とする装置。 - 請求項1において、
前記コントローラは、さらに、現在の組織治療領域についての間接的なHIFU治療によって、十分な組織変化が現在の組織治療領域において起こっているか判断するように構成され、十分な組織変化が起こっていると判断された場合には、その組織治療領域は治療対象から除かれることを特徴とする装置。 - 請求項3において、
前記コントローラは、前記トランスデューサを治療モードで動作させるように構成され、前記現在の組織治療領域についてのHIFU治療によって十分な組織変化が起こっていないと判断された場合に、HIFU治療が第1の組織治療領域に行われることを特徴とする装置。 - 請求項1において、
前記コントローラは、さらに、前記組織変化値が低い場合に、組織治療領域に対して追加のHIFU治療を行うように構成され、前記治療モードの治療変数がさらなる治療のために変更されることを特徴とする装置。 - 請求項1において、
前記コントローラは、さらに、前記受信した2D RF信号の信号−ノイズレベルが反射された後方散乱エネルギーにおける変化を近似的に算出するのに十分か判断するように構成され、前記2D RF信号の絶対値の平均が閾値よりも低い場合には、ゲインパラメータを増加させ、前記パルスエコーモードで前記トランスデューサを再度動作させ、画像データを生成することを特徴とする装置。 - 請求項1において、
前記コントローラは、さらに、前記受信した2D RF信号の信号−ノイズレベルが反射された後方散乱エネルギーにおける変化を近似的に算出するのに十分か判断するように構成され、飽和している前記2D RF信号のデータ点の割合が閾値より上である場合には、ゲインパラメータを減少させ、前記トランスデューサを前記パルスエコーモードで再度動作させ、画像データを生成することを特徴とする装置。 - 請求項1において、
独立のゲイン制御のための微調整が、前記パルスエコーモードで動作する前記トランスデューサに対して行われることを特徴とする装置。 - 請求項1において、
さらに、前記第1の組織治療領域に対するHIFU治療を行った後に生成される画像を表示するディスプレイを有し、
前記ディスプレイは、前記対象領域に対応する前記組織変化値の可視的表示を含み、前記可視的表示は、前記第1の組織治療領域に対応する位置に重ね合わせ表示され、前記可視的表示は好ましくは前記第1の組織治療領域に対する組織変化のレベルに関連する色分けされた表示を含むことを特徴とする装置。
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Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/853,191 US8235902B2 (en) | 2007-09-11 | 2007-09-11 | System and method for tissue change monitoring during HIFU treatment |
US11/853,191 | 2007-09-11 | ||
PCT/US2008/010605 WO2009035627A2 (en) | 2007-09-11 | 2008-09-11 | System and method for tissue change monitoring during hifu treatment |
Publications (3)
Publication Number | Publication Date |
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JP2010538740A JP2010538740A (ja) | 2010-12-16 |
JP2010538740A5 JP2010538740A5 (ja) | 2014-01-23 |
JP5462167B2 true JP5462167B2 (ja) | 2014-04-02 |
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JP2010524860A Expired - Fee Related JP5462167B2 (ja) | 2007-09-11 | 2008-09-11 | Hifu治療中の組織変化モニタリングのためのシステム及び方法 |
Country Status (6)
Country | Link |
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US (1) | US8235902B2 (ja) |
EP (1) | EP2207596B1 (ja) |
JP (1) | JP5462167B2 (ja) |
CA (1) | CA2699408C (ja) |
ES (1) | ES2424874T3 (ja) |
WO (1) | WO2009035627A2 (ja) |
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2007
- 2007-09-11 US US11/853,191 patent/US8235902B2/en active Active
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2008
- 2008-09-11 EP EP08830580.0A patent/EP2207596B1/en not_active Not-in-force
- 2008-09-11 WO PCT/US2008/010605 patent/WO2009035627A2/en active Application Filing
- 2008-09-11 CA CA2699408A patent/CA2699408C/en not_active Expired - Fee Related
- 2008-09-11 ES ES08830580T patent/ES2424874T3/es active Active
- 2008-09-11 JP JP2010524860A patent/JP5462167B2/ja not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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US9974983B2 (en) | 2015-11-12 | 2018-05-22 | SonaCare Medical, LLC | Tissue stabilization for therapeutic ultrasound |
US10300308B2 (en) | 2016-09-23 | 2019-05-28 | SonaCare Medical, LLC | System, apparatus and method for high-intensity focused ultrasound (HIFU) and/or ultrasound delivery while protecting critical structures |
US11260249B2 (en) | 2018-07-19 | 2022-03-01 | Sonablate Corp. | System, apparatus and method for high intensity focused ultrasound and tissue healing activation |
Also Published As
Publication number | Publication date |
---|---|
US8235902B2 (en) | 2012-08-07 |
WO2009035627A3 (en) | 2009-07-02 |
EP2207596B1 (en) | 2013-05-15 |
ES2424874T3 (es) | 2013-10-09 |
US20090069677A1 (en) | 2009-03-12 |
WO2009035627A2 (en) | 2009-03-19 |
EP2207596A2 (en) | 2010-07-21 |
CA2699408A1 (en) | 2009-03-19 |
CA2699408C (en) | 2017-06-20 |
JP2010538740A (ja) | 2010-12-16 |
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