JP5538997B2 - 液体が充填した構造物および液体が充填していない構造物の非侵襲性測定用三次元超音波ベース機器 - Google Patents
液体が充填した構造物および液体が充填していない構造物の非侵襲性測定用三次元超音波ベース機器 Download PDFInfo
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Description
本出願は、2003年7月31日付けで速達郵便番号EL476471354USによって出願した米国特許出願通し番号_______________に対する優先権を主張するものである。本出願はまた、2002年11月5日出願の米国仮特許出願通し番号60/423,881および2002年8月2日出願の米国仮出願60/400,624に対し優先権を主張するところの、2003年5月20日付け提出の米国特許出願通し番号10/443,126に対する一部継続出願および優先権を主張する。本出願は、2003年5月12日出願の米国仮特許出願通し番号60/470,525および2002年6月7日提出の米国特許出願通し番号10/165,556に対する優先権を主張する。上記の全出願書はここで完全に記載されたかのように参照としてその全体がここに組み込まれる。
本発明は画像向上および分析の分野に関連し、詳細には電磁的および非電磁的に取得した画像、超音波ベースの非侵襲性の産科測定、および、特に三次元画像から器官の大きさと形状を測定する医療画像分野に関する。
AFI測定は日常的に使用されているにも関わらず、研究ではAFIと真性AF容量との間にほとんど相関関係は見られなかった(Sepulveda W, Flack NJ, Fisk NM.,“Direct volume measurement at midtrimester amnioinfusion in relation to ultrasonographic indexes of amniotic fluid volume”(「羊水容量の超音波検査図指標に関連する妊娠中期の羊水補充療法による直接的容量測定」) Am J Obstet Gynecol Apr; 170(4):1160-3, 1994)。相関係数は、経験のある超音波検査士でも、0.55という低さであった。縦直径のみの使用と各四分円の1ポケットのみの使用は、AFIがAF容量 (AFV) を的確に測定できない2つの理由である。
グローバー等(Grover J, Mentakis EA, Ross MG, “Three-dimensional method for determination of amniotic fluid volume in intrauterine pockets”(「子宮内ポケットの羊水容量評価用三次元方法」) Obstet Gynecol, Dec; 90(6): 1007-10, 1997) は、羊水容量の測定用に膀胱容量器具の使用を説明している。グローバー等の方法は、何の変更も加えることなく膀胱容量器具を使用し、羊水ポケット用に一般化されていない膀胱固有の形状およびその他解剖学上の前提を用いる。グローバー等の膀胱モデルと適合しない形状を有する羊水ポケットは、分析上のエラーの原因となる。さらには、膀胱容量器具では、一回の画像走査で複数の羊水ポケットの可能性を考慮に入れることができない。従ってグローバー等による羊水容量測定法は、精度に欠ける可能性がある。
I2 y はy軸沿いの強度のy導関数の二乗である。
Claims (15)
- 体腔に入っている流体の容量を測定するように構成されている装置であって、
前記装置は、
前記体腔が見える所に位置決めされた少なくとも1つのトランスデューサアセンブリであって、超音波を前記体腔に送信し、前記体腔に関連付けられている表面から反射した少なくとも1つのエコーを受信するように構成された、少なくとも1つのトランスデューサアセンブリと、
前記少なくとも1つのトランスデューサアセンブリと信号通信するコンピュータと、
を具備し、
前記コンピュータは、データのルックアップテーブルにアクセスし、
前記コンピュータは、
前記少なくとも1つのエコーに関連付けられている少なくとも1つの高調波エネルギーレベル値を決定し、
前記データに基づいて、前記体腔に入っている前記流体の容量を計算する、
ように構成されており、
前記データは、前記高調波エネルギーレベル値と前記流体の容量との対応関係を記述している、装置。 - 前記体腔は、膀胱を含み、
前記流体は、尿を含む、請求項1の装置。 - 前記少なくとも1つのトランスデューサアセンブリは、選択された順序で複数のエコーを送信および受信するために位置決めされた複数のトランスデューサアセンブリを含む、請求項1の装置。
- 前記複数のトランスデューサアセンブリは、5個から成る配列を含む、請求項3の装置。
- 5個のトランスデューサアセンブリから成る配列は、前記トランスデューサアセンブリの配列面に直交する軸に対して角度OA、OB、OC、OD、OEにそれぞれ向けられ、
前記角度は、およそ、OA=−25°であり、OB=0°であり、OC=+25°であり、OD=+25°であり、OE=+40°である、請求項4の装置。 - 前記コンピュータは、
複数の膀胱充填範囲のうちの少なくとも1つに関して、前記流体の容量を確認し、
臨床的に重要な膀胱充填レベルを知らせる、
ように構成されている、請求項5の装置。 - 前記コンピュータは、入力された患者情報を、複数の較正要素から成るルックアップテーブル内に提示するディスプレイに結合されており、
前記入力された患者情報は、
性別と、
体重と、
年齢と、
前記複数の較正要素から成るルックアップテーブルから導き出される複数の修正要素Kと、
を含む、請求項6の装置。 - 前記複数の較正要素から成るルックアップテーブルは、「自己学習プロセス」において、複数の修正要素Kを最適化するために、前記送信された超音波に含まれている音響出力から複数の容量測定値を確認する較正曲線を含む、請求項7の装置。
- 前記体腔または前記流体の容量情報は、前記複数のトランスデューサアセンブリのうちの少なくも1つに接続されている保留/開始ボタンによってフリーズされ得る、請求項7の装置。
- 前記体腔の壁の複数のエコー反射領域が単一断面のサジタル面にほぼ配置されるように、前記複数のトランスデューサアセンブリが位置決めされる、請求項3の装置。
- 前記複数のトランスデューサアセンブリは、ほぼ円盤型である、請求項10の装置。
- 前記複数のトランスデューサアセンブリは、電池によって電力を供給される、請求項11の装置。
- 前記複数のトランスデューサアセンブリは、
ディスプレイデバイスが、人間の膀胱にわたって前記複数のトランスデューサアセンブリの正しい後方−頭方の位置決めを表示することを可能にするデータを生成する、
ように構成されている、請求項10の装置。 - 前記少なくとも1つのトランスデューサアセンブリは、ハウジングにケーブルで接続されており、
前記ハウジングは、入力装置と、プロセッサと、ディスプレイと、電力供給ユニットと、を収めている、請求項1の装置。 - 前記少なくとも1つのトランスデューサアセンブリは、患者の便宜と最適な超音波結合のために前記複数のトランスデューサアセンブリをカバーする超音波結合材料をさらに含む、請求項1の装置。
Applications Claiming Priority (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US40062402P | 2002-08-02 | 2002-08-02 | |
US60/400,624 | 2002-08-02 | ||
US42388102P | 2002-11-05 | 2002-11-05 | |
US60/423,881 | 2002-11-05 | ||
US47052503P | 2003-05-12 | 2003-05-12 | |
US60/470,525 | 2003-05-12 | ||
US10/443,126 | 2003-05-20 | ||
US10/443,126 US7041059B2 (en) | 2002-08-02 | 2003-05-20 | 3D ultrasound-based instrument for non-invasive measurement of amniotic fluid volume |
US10/633,186 | 2003-07-31 | ||
US10/633,186 US7004904B2 (en) | 2002-08-02 | 2003-07-31 | Image enhancement and segmentation of structures in 3D ultrasound images for volume measurements |
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JP2005506095A Division JP2005534462A (ja) | 2002-08-02 | 2003-08-01 | 液体が充填した構造物および液体が充填していない構造物の非侵襲性測定用三次元超音波ベース機器 |
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JP2010207596A JP2010207596A (ja) | 2010-09-24 |
JP5538997B2 true JP5538997B2 (ja) | 2014-07-02 |
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JP2005506095A Withdrawn JP2005534462A (ja) | 2002-08-02 | 2003-08-01 | 液体が充填した構造物および液体が充填していない構造物の非侵襲性測定用三次元超音波ベース機器 |
JP2010106647A Expired - Fee Related JP5538997B2 (ja) | 2002-08-02 | 2010-05-06 | 液体が充填した構造物および液体が充填していない構造物の非侵襲性測定用三次元超音波ベース機器 |
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JP2005506095A Withdrawn JP2005534462A (ja) | 2002-08-02 | 2003-08-01 | 液体が充填した構造物および液体が充填していない構造物の非侵襲性測定用三次元超音波ベース機器 |
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US (1) | US7004904B2 (ja) |
EP (1) | EP1538986B1 (ja) |
JP (2) | JP2005534462A (ja) |
AT (1) | ATE512628T1 (ja) |
AU (1) | AU2003261357A1 (ja) |
CA (1) | CA2534287A1 (ja) |
WO (1) | WO2004012584A2 (ja) |
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KR102631689B1 (ko) | 2021-11-11 | 2024-01-31 | 연세대학교 산학협력단 | 초음파 이미지 기반 양수 지표 측정 장치 및 방법 |
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ATE512628T1 (de) | 2011-07-15 |
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EP1538986A2 (en) | 2005-06-15 |
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