JPH09504211A - ソノマモグラフィーおよびよりよいx線撮影を行う方法および装置 - Google Patents
ソノマモグラフィーおよびよりよいx線撮影を行う方法および装置Info
- Publication number
- JPH09504211A JPH09504211A JP7512739A JP51273995A JPH09504211A JP H09504211 A JPH09504211 A JP H09504211A JP 7512739 A JP7512739 A JP 7512739A JP 51273995 A JP51273995 A JP 51273995A JP H09504211 A JPH09504211 A JP H09504211A
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- biological tissue
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- ultrasonic transducer
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- A61B6/502—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications for diagnosis of breast, i.e. mammography
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- A61B6/5229—Devices using data or image processing specially adapted for radiation diagnosis involving processing of medical diagnostic data combining image data of a patient, e.g. combining a functional image with an anatomical image
- A61B6/5247—Devices using data or image processing specially adapted for radiation diagnosis involving processing of medical diagnostic data combining image data of a patient, e.g. combining a functional image with an anatomical image combining images from an ionising-radiation diagnostic technique and a non-ionising radiation diagnostic technique, e.g. X-ray and ultrasound
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Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.生物組織の複数の超音波像を生成する装置(10、50、70)であって、 該装置は、レセプタ(22、59、75)に該生物組織の像を形成するX線シス テム(13、14、20、53、54、58)と共に使用され、該装置は、超音 波変換器(16、57、76)、および該生物組織が固定される圧縮面(15、 56、72)を備えており、該生物組織が該圧縮面(15、56、72)に固定 されている間に該超音波変換器(16、57、76)は該生物組織の複数の超音 波像を生成し、それにより該複数の超音波像が、該レセプタ(22、59、75 )に形成された該像と幾何学的に合致され得ることを特徴とする装置(10、5 0、70)。 2.前記圧縮面が、音波透過性かつ放射線透過性である圧縮板(15)の下面で あり、該圧縮板(15)は、上面を有し、前記超音波変換器(16)は、該上面 に隣接して配置され、前記装置は、該超音波変換器(16)を該上面にわたって 移動させる駆動手段(25)をさらに備えている、請求項1に記載の装置(10 )。 3.前記圧縮板(15)が、ポリイミド、ナトリウムベースのアイオノマー樹脂 、およびポリメチルペンテンからなる群から選択された材料を含む、請求項2に 記載の装置(10)。 4.前記材料(95)が、周辺部を有し、該材料(95)が、該周辺部あたりで 、剛性のフレーム(96)に連結している、請求項3に記載の装置(10)。 5.前記超音波変換器(57)は、前記圧縮板(56)の下に配置され、前記生 物組織に音波エネルギーを伝送するために該圧縮板に音波的に連結されており、 該装置は、該超音波変換器(57)を活性化させる制御回路(83)をさらに備 えている、請求項1に記載の装置(50)。 6.前記圧縮面(72)が、第1の圧縮面であり、前記超音波変換器(76)は 該第1の圧縮面(72)と第2の圧縮面(73)との間に配置されており、前記 装置は、該超音波変換器(76)を、該第1と第2の圧縮面(72、73)との 間の所定の経路を通して移動させる駆動手段(78)をさらに備えている、請 求項1に記載の装置(70)。 7.前記生物組織の一部を前記超音波変換器(16、57、76)へ音波的に連 結するためのゲルパッド(23、77)をさらに備えている、請求項1から6の 何れかに記載の装置(10、50、70)。 8.前記ゲルパッド(23)は、前記圧縮面(50)に対して、かつ、前記生物 組織と接触して配置されており、該生物組織の形状に合い、該生物組織のX線減 衰特性に近いX線減衰特性を有する材料を含んでいる、請求項7に記載の装置( 10、50)。 9.前記X線システムが、X線を放射し、前記ゲルパッド(23)が、大気中で の該X線放射の散乱に対して、該X線放射の散乱を減少させる、請求項8に記載 の装置(10、50)。 10.前記圧縮板(15、50)は、前記生物組織に力をかけて該生物組織を一 様な厚さに圧縮し、前記ゲルパッド(23)は、該力を分散させ、患者の不快感 を軽減するために該生物組織の一様でない形状に合っている、請求項6から9の 何れかに記載の装置(10、50)。 11.前記ゲルパッド(23)は、前記圧縮面(56)に対して、前記生物組織 を配置するのに役立つ接着性の面を備えている、請求項6から10の何れかに記 載の装置(10、50)。 12.前記超音波変換器(16)と前記圧縮板(15)との間に、該超音波変換 器(16)と該圧縮板(15)とを潤滑にし、かつ音波的に連結する流体のフィ ルムを提供する潤滑手段(112)をさらに備えている、請求項2に記載の装置 (10)。 13.前記駆動手段(25)が、 構台支持(18)と、 遠位および近位の方向の移動のための該構台支持(18)と移動可能に係合さ れた構台(17)と、 横方向の移動のために該構台(17)と移動可能に係合されたキャリッジ(2 6)とをさらに備える、請求項2に記載の装置(10)。 14.前記駆動手段(25)が、 前記構台支持(18)に沿って前記構台(17)を駆動する第1の電動ケーブ ル構造(30)と、 該構台(17)に沿って前記キャリッジ(26)を駆動させる第2の電動ケー ブル構造(27)と、 該第1および第2の電動ケーブル構造(30、27)の動作を制御する回路( 82)とを備えている、請求項13に記載の装置(10)。 15.バイオプシー器具支持(40)、 医者が、前記複数の超音波像によって案内されたバイオプシーを行い得るよう に、該バイオプシー器具支持を前記超音波変換器(16)に位置合わせする手段 (21)とをさらに備える、請求項2に記載の装置(10)。 16.前記超音波変換器(16)が、多数の圧電変換要素(63')を備える、 請求項5に記載の装置(50)。 17.前記制御回路(83)が、前記多数の圧電変換要素のうちの所定のものを 活性化させ、前記音波エネルギーのビーム形成および高さの焦点合わせを提供す る回路をさらに備える、請求項16に記載の装置(50)。 18.前記制御回路(83)が、前記多数の圧電要素(63')のうちの所定の 複数を活性化させ、所定の位置に超音波像を生成する回路を備えおり、前記装置 は、 バイオプシー器具支持(40)と、 医者が、該所定の位置の該超音波像によって案内されたバイオプシーを行い得 るように、該バイオプシー器具支持を該所定の複数の圧電要素と位置合わせする 手段(21)とをさらに備える、請求項16に記載の装置(50)。 19.前記ゲルパッド(77)が、前記第1と第2の圧縮面(72、73)との 間に配置され、前記生物組織と接触しており、該ゲルパッド(77)が、該生物 組織の形状に合い、該生物組織のX線減衰特性に近いX線減衰特性を有する材料 を含んでおり、該ゲルパッド(77)が、大気中での前記X線放射の散乱に対し て、該X線放射の散乱を減少させる、請求項7に記載の装置(70)。 20.前記第1および第2の圧縮面(72、73)は、前記生物組織に力をかけ 、前記ゲルパッド(77)は、該力を分散させ、患者の不快感を軽減するため に、該生物組織の一様でない形状に合っている、請求項7に記載の装置(70) 。 21.前記ゲルパッド(77)が、前記第1と第2の圧縮面(72、73)との 間に前記生物組織を配置するのに役立つ接着性の面を備える、請求項7に記載の 装置(70)。 22.生物組織のX線像および該生物組織の該X線像と幾何学的に合致した超音 波像と得る方法であって、該方法は (a)基準点に関して生物組織を固定する工程と、 (b)該生物組織をX線放射に曝し、該生物組織のX線像をレセプタに生成す る工程と、 (c)該基準点に対する該生物組織の動きを妨げることなく超音波変換器(1 6)を該生物組織と音波的に連結することによって、該生物組織の複数の超音波 像を生成する工程と、 (d)該X線像上の所定の位置に対応する該複数の超音波像のうちのいずれか 1つを表示する工程と、 の一連の工程を包含しており、工程(b)が、工程(c)の前または後に行われ る方法。 23.前記方法が、 (e)時間ベースで、複数の超音波像を繰り返し生成し、かつ表示する工程と 、 (f)バイオプシー器具の一部を、該複数の超音波像において見ることができ るように、該バイオプシー器具を生物組織に挿入する工程と、 (g)前記X線像および該複数の超音波像に基づいて、該生物組織内の所望の 位置へと該バイオプシー器具を操作する工程とをさらに包含する、請求項22に 記載の方法。 24.前記方法が、 (e)前記複数の超音波像を記憶媒体に記憶する工程と、 (f)前記X線像上の所定の位置に対応する該記憶媒体から該複数の超音波像 の何れか1つを取り出す工程とをさらに包含する、請求項22に記載の方法。 25.前記方法が、 (e)時間ベースで、前記生物組織内の位置で、複数の超音波像を繰り返し生 成し、かつ表示する工程と、 (f)該位置で該複数の超音波像を処理し、その位置での血液フローに対応す るインディケータを提供する工程とをさらに包含する、請求項22に記載の方法 。 26.前記方法が、 (e)前記基準点に対する前記生物組織の動きを妨げることなく超音波変換器 (16)を該生物組織と音波的に連結することによって、該生物組織について複 数のドップラー信号を生成する工程と、 (f)前記X線像上の所定の位置について該複数のドップラー信号に対応する インディケータを表示する工程とをさらに包含する、請求項22に記載の方法。 27.前記方法が、 (e)前記複数の超音波像を記憶媒体に記憶する工程と、 (f)前記生物組織の内部特徴のホログラフィックな像を提供するように、該 複数の超音波像のうち選択された像を表示する工程とをさらに包含する、請求項 22に記載の方法。 28.前記超音波変換器(16)はX−Y平面に表面を有しており、前記超音波 像の各像は、該X−Y平面に直交するZ軸に沿った多数の平面で得られる多数の デジタル符号化されたデータ値を有しており、前記方法は、 (e)該Z軸に沿って、該多数のデジタル符号化されたデータ値を合計し、該 X−Y平面に該複数の超音波像の射影を生成する工程と、 (f)該射影を表示する工程とをさらに包含しており、 工程(a)が、工程(c)の前または後に行われ得る、請求項22に記載の方 法。 29.前記X線像を前記射影と比較し、前記生物組織の内部特徴の選択された像 を隔離する工程と 該X線像および該射影をカラーコード化する工程とを包含する、請求項28に 記載の方法。 30.異常に対して前記組織を選別するのに用いられる方法であって、工程(a )〜(c)は、第1の圧縮負荷が該生物組織に与えられている間に行われ、工程 (c)は、第1の複数のデジタル符号化された超音波像を生成し、該方法は、 (e)該第1の複数のデジタル符号化された超音波像を記憶する工程と、 (f)第2の圧縮負荷を該生物組織に与える工程であって、該第2の圧縮負荷 が、該第1の圧縮負荷とは異なる工程と、 (g)前記超音波変換器(16)を作動させ、前記基準点に関して、該生物組 織の第2の複数のデジタル符号化された超音波像を生成する工程と、 (h)該基準点に関して、該第2の複数のデジタル符号化された超音波像の各 像を、該第1の複数のデジタル符号化された超音波像の対応する像から、デジタ ル減算する工程と、 (i)第1と第2のデジタル符号化された超音波像の差を表示する工程と、 (j)所定の位置での該第1と第2のデジタル符号化された超音波像の差を、 前記X線像の対応する位置と比較する工程とをさらに包含する、請求項22に記 載の方法。 31.前記第1および第2の複数のデジタル符号化された超音波像をカラーコー ド化する工程をさらに包含する、請求項22に記載の方法。 32.音波透過性であり、第1および第2の面を有する圧縮板(15)であって 、該第1の面が、前記生物組織を固定する圧縮面を形成する圧縮板と、該第2の 面に隣接して配置された超音波変換器(16)と、該生物組織が該圧縮面(15 )に対して固定されている間に該第2の面にわたって該超音波変換器(16)を 移動させる駆動手段(25)であって、該超音波変換器(16)が該生物組織の 複数の超音波像を生成する駆動手段と、該複数の超音波像の選択された像を表示 する手段(46)とを備えている像案内バイオプシーを行う装置(10)であっ て、該装置は、 バイオプシー器具支持(40)、および 医者が、該複数の超音波像を頼りにバイオプシーを行い得るように、該バイオ プシー器具支持を該超音波変換器(16)に位置合わせする手段(21)とによ って特徴づけられている装置(10)。 33.生物組織の内部特徴の超音波像を得る方法であって、 生物組織を基準点に対して固定する工程と、 超音波変換器(16)を該生物組織に音波的に連結することによって、該基準 点に関して該生物組織の複数の超音波像を生成する工程と、 該複数の超音波像のうち選択された像を表示する工程と、 時間ベースで、複数の超音波像を繰り返し生成し、かつ表示する工程と、 バイオプシー器具の一部を、該複数の超音波像の該選択された像において見る ことができるように、該バイオプシー器具を該生物組織に挿入する工程と、 該複数の超音波像のうち該選択された像の該表示に基づいて、該生物組織内の 所望の位置へと該バイオプシー器具を操作する工程とを包含する方法。
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- 1994-10-21 WO PCT/US1994/012118 patent/WO1995011627A1/en active IP Right Grant
- 1994-10-21 AU AU81234/94A patent/AU8123494A/en not_active Abandoned
- 1994-10-21 JP JP51273995A patent/JP3461509B2/ja not_active Expired - Fee Related
- 1994-10-21 DE DE69423778T patent/DE69423778T2/de not_active Expired - Lifetime
- 1994-10-21 AT AT95900400T patent/ATE191136T1/de not_active IP Right Cessation
-
1995
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1997
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-
2003
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2005
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Also Published As
Publication number | Publication date |
---|---|
DE69423778D1 (de) | 2000-05-04 |
EP0730431A1 (en) | 1996-09-11 |
EP0730431B1 (en) | 2000-03-29 |
US5938613A (en) | 1999-08-17 |
AU8123494A (en) | 1995-05-22 |
JP2005270677A (ja) | 2005-10-06 |
JP2003325523A (ja) | 2003-11-18 |
US5664573A (en) | 1997-09-09 |
JP3461509B2 (ja) | 2003-10-27 |
WO1995011627A1 (en) | 1995-05-04 |
CA2173154C (en) | 2010-03-23 |
DE69423778T2 (de) | 2000-07-27 |
CA2173154A1 (en) | 1995-05-04 |
ATE191136T1 (de) | 2000-04-15 |
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