JP2019530557A - 圧力測定のための非侵襲法 - Google Patents
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/04—Measuring blood pressure
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- A—HUMAN NECESSITIES
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- A—HUMAN NECESSITIES
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- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
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- A61B8/52—Devices using data or image processing specially adapted for diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/5215—Devices using data or image processing specially adapted for diagnosis using ultrasonic, sonic or infrasonic waves involving processing of medical diagnostic data
- A61B8/5223—Devices using data or image processing specially adapted for diagnosis using ultrasonic, sonic or infrasonic waves involving processing of medical diagnostic data for extracting a diagnostic or physiological parameter from medical diagnostic data
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- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
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- A61K49/22—Echographic preparations; Ultrasound imaging preparations ; Optoacoustic imaging preparations
- A61K49/222—Echographic preparations; Ultrasound imaging preparations ; Optoacoustic imaging preparations characterised by a special physical form, e.g. emulsions, liposomes
- A61K49/223—Microbubbles, hollow microspheres, free gas bubbles, gas microspheres
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- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
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Abstract
Description
この特定の波形を使用する本発明の方法は、矩形波を使用した既存のSHAPE技法に対して驚くべき改善を提供し、インビボの圧力測定に対してSHAPEをより敏感にするはずである。
DICOM 医用デジタル・イメージングおよび通信(digital imaging and communications in medicine)
MIP 最大強度投影(maximum intensity projection)
RF 高周波
ROI 関心領域
SHAPE 低調波支援圧力推定
SHI 低調波イメージング
Claims (31)
- 被検体の少なくとも1つの関心領域(ROI)の圧力測定値を得るための方法であって、前記方法は、
前記被検体に診断上有効な量の微小気泡超音波造影剤(UCA)を投与するステップと、
前記UCAが前記被検体に蓄積することを可能にするステップと、
前記被検体の前記ROIに超音波を送信するステップであって、前記超音波が広帯域波である、送信するステップと、
前記超音波に対する音響パワーを最適化するステップと、
前記ROIから、ステップ(iii)で送信された前記超音波を反射することによって生成された超音波エコーを受信し、これによって検出信号を取得するステップと、
前記検出信号に基づいて前記超音波エコーから低調波成分を抽出するステップと、
低調波信号振幅と周囲圧力との間の逆線形関係を使用して、前記圧力測定値を得るステップと、
を含む方法。 - 前記被検体が哺乳動物である、請求項1に記載の方法。
- 前記哺乳動物が人である、請求項2に記載の方法。
- 前記投与するステップが静脈注射である、請求項1から3のいずれか一項に記載の方法。
- 前記投与するステップが点滴である、請求項1から4のいずれか一項に記載の方法。
- 前記投与するステップが生理食塩水との混注である、請求項1から5のいずれか一項に記載の方法。
- 前記UCAが、それぞれが安定化シェルによって囲まれたガスを含む微小気泡を含む、請求項1から6のいずれか一項に記載の方法。
- 前記ガスが前記被検体の血液と比較して、異なる圧縮率を有する、請求項1から7のいずれか一項に記載の方法。
- 前記ガスが低溶解度を示す高密度の高分子量ガスである、請求項1から8のいずれか一項に記載の方法。
- 前記ガスがパーフルトレン、パーフルオロブタン(PFB)、オクタフルオロプロパン、または六フッ化硫黄を含むグループから選択される、請求項1から9のいずれか一項に記載の方法。
- 前記安定化シェルがタンパク質、脂質、またはポリマーを含む、請求項7から10のいずれか一項に記載の方法。
- 前記安定化シェルがタンパク質を含む、請求項7から11のいずれか一項に記載の方法。
- 前記タンパク質がアルブミンである、請求項12に記載の方法。
- 前記安定化シェルが脂質を含む、請求項7から11のいずれか一項に記載の方法。
- 前記脂質がリン脂質である、請求項14に記載の方法。
- 前記リン脂質がフォスファチジルセリン(PS)である、請求項15に記載の方法。
- 前記リン脂質が水素化卵フォスファチジルセリン(HEPS)である、請求項15に記載の方法。
- 前記安定化シェルがポリマーを含む、請求項7から11のいずれか一項に記載の方法。
- 前記ポリマーが乳酸(PLA)および乳酸/グリコール酸(PLGA)を主成分とする脂肪族ポリエステルである、請求項18に記載の方法。
- 前記ポリマーがアルギナートである、請求項18に記載の方法。
- 前記超音波がガウス窓パルスである、請求項1から20のいずれか一項に記載の方法。
- 前記ガウス窓パルスがガウス窓矩形波、ガウス窓二項フィルタ処理矩形波、ガウス窓二項フィルタ処理矩形90°シフト波を含むグループから選択される、請求項21に記載の方法。
- 前記超音波がチャープ・パルスである、請求項1から20のいずれか一項に記載の方法。
- 前記ROIが前記被検体の門脈を含む、請求項1から23のいずれか一項に記載の方法。
- 前記ROIが前記被検体の肝静脈をさらに含む、請求項24に記載の方法。
- 前記ROIが前記被検体の心腔を含む、請求項1から23のいずれか一項に記載の方法。
- 前記心腔が心室である、請求項26に記載の方法。
- 前記心室が左心室である、請求項27に記載の方法。
- 前記ROIが前記被検体の病変組織を含む、請求項1から23のいずれか一項に記載の方法。
- 前記病変組織が悪性腫瘍またはアテローム硬化性プラークを含むグループのうちの1つである、請求項29に記載の方法。
- 前記ROIが前記被検体の非病変組織をさらに含む、請求項29または請求項30のいずれか一項に記載の方法。
Applications Claiming Priority (3)
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US201662406797P | 2016-10-11 | 2016-10-11 | |
US62/406,797 | 2016-10-11 | ||
PCT/US2017/056154 WO2018071551A1 (en) | 2016-10-11 | 2017-10-11 | Non-invasive method for pressure measurement |
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JP2019530557A true JP2019530557A (ja) | 2019-10-24 |
JP2019530557A5 JP2019530557A5 (ja) | 2021-02-04 |
JP7104709B2 JP7104709B2 (ja) | 2022-07-21 |
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US (1) | US11317888B2 (ja) |
EP (1) | EP3525678A1 (ja) |
JP (1) | JP7104709B2 (ja) |
WO (1) | WO2018071551A1 (ja) |
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US11435461B2 (en) * | 2019-07-19 | 2022-09-06 | GE Precision Healthcare LLC | Method and system to prevent depoling of ultrasound transducer |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20010021808A1 (en) * | 1998-03-20 | 2001-09-13 | William Tao Shi | Method and system for pressure estimation using subharmonic signals from microbubble-based ultrasound contrast agents |
JP2004529697A (ja) * | 2001-04-06 | 2004-09-30 | ブラッコ・リサーチ・ソシエテ・アノニム | 流体で充填された空洞内の局所物理パラメータの改善された測定方法 |
JP2009011363A (ja) * | 2007-06-29 | 2009-01-22 | Toshiba Corp | 超音波診断装置 |
WO2010147055A1 (ja) * | 2009-06-18 | 2010-12-23 | 株式会社日立メディコ | 超音波撮像装置及び超音波撮像方法 |
JP2013135801A (ja) * | 2011-12-28 | 2013-07-11 | Shinshu Univ | センチネルリンパ節内部を描出する画像診断装置及びその作動方法 |
Family Cites Families (2)
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IL110185A (en) | 1993-07-02 | 1999-05-09 | Molecular Biosystems Inc | Method for making encapsulated gas microspheres from heat denatured protein in the absence of oxygen gas |
CN104519989B (zh) | 2012-06-26 | 2016-10-26 | 通用电气医疗集团股份有限公司 | 制备包含气体微泡的组合物 |
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2017
- 2017-10-11 WO PCT/US2017/056154 patent/WO2018071551A1/en unknown
- 2017-10-11 US US16/341,334 patent/US11317888B2/en active Active
- 2017-10-11 EP EP17787853.5A patent/EP3525678A1/en active Pending
- 2017-10-11 JP JP2019540312A patent/JP7104709B2/ja active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20010021808A1 (en) * | 1998-03-20 | 2001-09-13 | William Tao Shi | Method and system for pressure estimation using subharmonic signals from microbubble-based ultrasound contrast agents |
JP2004529697A (ja) * | 2001-04-06 | 2004-09-30 | ブラッコ・リサーチ・ソシエテ・アノニム | 流体で充填された空洞内の局所物理パラメータの改善された測定方法 |
JP2009011363A (ja) * | 2007-06-29 | 2009-01-22 | Toshiba Corp | 超音波診断装置 |
WO2010147055A1 (ja) * | 2009-06-18 | 2010-12-23 | 株式会社日立メディコ | 超音波撮像装置及び超音波撮像方法 |
JP2013135801A (ja) * | 2011-12-28 | 2013-07-11 | Shinshu Univ | センチネルリンパ節内部を描出する画像診断装置及びその作動方法 |
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US11317888B2 (en) | 2022-05-03 |
EP3525678A1 (en) | 2019-08-21 |
JP7104709B2 (ja) | 2022-07-21 |
US20200046313A1 (en) | 2020-02-13 |
WO2018071551A1 (en) | 2018-04-19 |
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