JP2018008075A - 心臓壁の電気双極子密度の幾何学的測定のための装置 - Google Patents
心臓壁の電気双極子密度の幾何学的測定のための装置 Download PDFInfo
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Abstract
Description
ケース1:電気的および解剖学的情報が適当−組織は健全である。
ケース2:電気的情報が適当で解剖学情報が不適当−組織に損傷がある。
ケース3:電気的情報が不適当で解剖学情報が適当−組織に損傷がある。
ケース4:電気的および解剖学情報がどちらも不適当−組織壊死がある。
は心腔表面Se上に集中したデルタ分布であり、νは双極子密度である。
a)ある心腔の表面上のある位置P(x,y,z)における電位Vを測定し、記録する1つのユニット(接触型マッピング)または、壁と直接接触せずに心内に位置付けられたプローブ(非接触型マッピング)と、
b)測定された電位をデジタルデータに変換する1つのA/D変換器と、
c)測定および/または変換されたデータを保存する1つのメモリと、
d)デジタルデータをデジタル表面電荷密度または双極子密度データに変換する1つのプロセッサユニットと、
を含むシステムを使用することが好ましかった。
ケース1:電気的および解剖学的情報が適当−組織は健全である。
ケース2:電気的情報が適当で解剖学情報が不適当−組織に損傷がある。
ケース3:電気的情報が不適当で解剖学情報が適当−組織に損傷がある。
ケース4:電気的および解剖学情報がどちらも不適当−組織壊死がある。
Claims (30)
- 患者の1つまたは複数の心腔の表面における双極子密度d(y)と距離測定値のデータベースを作成する装置において、
多アームアセンブリと、
1つまたは複数のカテーテルに設置された複数電極であって、前記多アームアセンブリに取り付けられた電極を少なくとも1つ含む、複数電極と、
音波を発生するように構築、構成された少なくとも1つのトランスデューサと、
音波の反射を受けるように構築、構成された少なくとも1つのセンサと、を備え、
前記少なくとも1つのセンサに含まれる1つのセンサと前記少なくとも1つのトランスデューサに含まれる1つのトランスデューサの一方または両方が前記多アームアセンブリに取り付けられ、
さらに装置は、
各トランスデューサと前記1つまたは複数の心腔の組織表面との間の距離を表すデータ一式を、受け取った前記反射から生成するように構成された距離測定部と、
前記複数電極によって受け取った電気信号から双極子密度d(y)を測定するように構成された、双極子密度モジュールと、
各トランスデューサと前記1つまたは複数の心腔の組織表面との間の前記距離を表す前記データ一式と相関する前記双極子密度d(y)を保存するデータベースと、を備える
ことを特徴とする装置。 - 請求項1に記載の装置において、
前記少なくとも1つのトランスデューサおよび前記少なくとも1つのセンサが、トランスデューサおよびセンサを包含する1つの構成要素を少なくとも1つ含むことを特徴とする装置。 - 請求項1に記載の装置において、
前記装置がリアルタイム画像を生成するように構築、構成されることを特徴とする装置。 - 請求項1に記載の装置において、
前記装置が連続画像を生成するように構築、構成されることを特徴とする装置。 - 請求項1に記載の装置において、
前記装置が前記患者の組織の画像を生成するように構築、構成されることを特徴とする装置。 - 請求項5に記載の装置において、
前記画像が1つまたは複数の心腔の画像を含むことを特徴とする装置。 - 請求項5に記載の装置において、
前記画像が前記複数電極のうちの少なくとも1つの画像を含むことを特徴とする装置。 - 請求項1に記載の装置において、
前記装置が前記患者の組織の運動情報を提供するように構築、構成されることを特徴とする装置。 - 請求項1に記載の装置において、
前記装置が、前記患者の組織の厚さ情報を提供するように構築、構成されることを特徴とする装置。 - 請求項1に記載の装置において、
前記装置が距離測定データを生成し、
前記距離測定データが、前記複数電極のうちの少なくとも1つと心腔壁の間の距離を含むことを特徴とする装置。 - 請求項1に記載の装置において、
前記装置が、組織運動情報と細胞電気信号の両方を解析することによって、組織診断情報を提供するように構築、構成されることを特徴とする装置。 - 請求項11に記載の装置において、
前記装置が心臓アブレーション処置中に前記組織診断情報を提供するように構築、構成されることを特徴とする装置。 - 請求項1に記載の装置において、
前記装置が、電位図波形で心組織の位置を提供するように構築、構成されることを特徴とする装置。 - 請求項1に記載の装置において、
前記装置がさらにデリバリシースを備えることを特徴とする装置。 - 請求項1に記載の装置において、
前記センサまたは前記トランスデューサのうちの少なくとも一方が1つの構成要素を含むことを特徴とする装置。 - 請求項1に記載の装置において、
前記センサまたは前記トランスデューサのうちの少なくとも一方が、構成要素のアレイを含むことを特徴とする装置。 - 請求項16に記載の装置において、
前記アレイが超音波結晶のアレイを含むことを特徴とする装置。 - 請求項1に記載の装置において、
前記少なくとも1つのトランスデューサに含まれる前記トランスデューサと、前記少なくとも1つのセンサに含まれる前記センサが、前記多アームアセンブリに取り付けられることを特徴とする装置。 - 請求項1に記載の装置において、
前記トランスデューサが超音波トランスデューサを含むことを特徴とする装置。 - 請求項1に記載の装置において、
前記トランスデューサが3MHzから18MHzの間の周波数で信号を生成することを特徴とする装置。 - 請求項1に記載の装置において、
前記センサが超音波センサを含むことを特徴とする装置。 - 請求項1に記載の装置において、
前記センサが複数のセンサを含むことを特徴とする装置。 - 請求項1に記載の装置において、
前記複数電極からのマッピング情報を受け取るように構築、構成された第一の受信機であって、前記マッピング情報が、前記複数電極が前記1つまたは複数の心腔内に留置された時に受け取られるような第一の受信機をさらに備え、
前記双極子密度モジュールが、双極子密度d(y)の三次元データベースを生成するように構成、配置され、
前記双極子密度モジュールが心腔壁への個々の投影三角形についての双極子密度を測定し、位置yにおける各投影三角形について、ω(x,y)に前記双極子密度d(y)を乗じたものが地点xにおける電位V(x)となり、
ただし、ω(x,y)は前記投影三角形の立体角であり、
a)xは1つまたは複数の心腔内の一連の位置を表し、
b)V(x)は点xにおける測定電位であり、前記測定電位が前記複数電極によって記録される
ことを特徴とする装置。 - 請求項23に記載の装置において、
前記双極子密度が少なくとも1000個の投影三角形について測定されることを特徴とする装置。 - 請求項1に記載の装置において、
前記双極子密度モジュールが、対応する時間間隔の双極子密度d(y)のマップを作成することを特徴とする装置。 - 請求項1に記載の装置において、
前記双極子密度モジュールが、一連の心拍から、各々の対応する心拍の興奮順序のカスケードを表す合成マップを生成することを特徴とする装置。 - 請求項23に記載の装置において、
測定電位V(x)の補間によって領域数が増やされることを特徴とする装置。 - 請求項23に記載の装置において、
1つまたは複数の皮膚電極からマッピング情報を受け取るように構成された第二の受信機をさらに備えることを特徴とする装置。 - 請求項28に記載の装置において、
前記双極子密度モジュールが、前記マッピングを使用することを特徴とする装置。 - 請求項1に記載の装置において、
前記多アームアセンブリが、それに取り付けられる複数の電極と、超音波トランスデューサと超音波センサとの複数の対と、を含むことを特徴とする装置。
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US20180055374A1 (en) | 2018-03-01 |
AU2012225250B2 (en) | 2016-12-08 |
JP2018089414A (ja) | 2018-06-14 |
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