JP2014507208A - 心臓血管脈拍波動の視覚化の方法および装置 - Google Patents
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Abstract
【選択図】図3
Description
1 . P. A. Kyriacou, 「食道におけるパルスオキシメトリ"Pulse oximetry in the oesophagus,"」 Physiol. Meas. 27, R1 -R35 (2006).
2. J. Allen, 「臨床的生理学測定におけるフォトプレスチモグラフィおよびそれの応用"Photoplethysmography and its application in clinical physiological measurement,"」 Physiol. Meas. 28, R1 -R40 (2007).
3. J. Crowe, M. Grubb, B. Hayes-Gill, and N. Miles, 「フォトプレスチモグラフィ"Photoplethysmography,"」 Patent No. WO 2007/122375 (2007).
4. K. Humphreys, T. Ward, and C. Markham, 「非接触同時2波長フォトプレスチモグラフィ:非接触パルスオキシメトリに向けてのさらなるステップ"Noncontact simultaneous dual wavelength photoplethysmography: a further step toward noncontact pulse oximetry,"」 Rev. Sci. Instrum. 78, 044304-1 -044304-6 (2007).
5. F. P. Wieringa, F. Mastik, and A. F. W. van der Steen, 「非接触マルチ波長フォトプレスチモグラフィイメージング:『SpO2カメラ』技術に向けてのさらなるステップ"Contactless multiple wavelength photoplethysmographic imaging: a first step toward "SpO2 camera" technology,"」 Ann. Biomed. Eng. 33, 1034-1041 (2005).
6. US2008/081968; S. Numada and T. Ozawa, 「非侵襲性生体測定装置および非侵襲性生体測定方法"Nonivasive living body measuring device and noninvasive living body measuring method"」.
7. US 5,983,120; W. Groner and R. G. Nadeau, 「反射イメージング分析の方法および装置"Method and apparatus for reflected imaging analysis"」.
8. WO0215786; C. A. Cook, M. K. Emresoy, and H. Farid, 「血液特性形態スペクトル画像の測定用装置、方法、およびコンピュータプログラム"System, method and computer program product for measuring blood properties form a spectral image"」.
9. WO 02/15788; E. P. Krotkov, Y. Wang, Z. Zhong, and R. M. Danen, 「スペクトル画像をスクリーニングする装置、方法、およびコンピュータプログラム"System, method and computer program product for screening a spectral image"」.
10. US 2005/131284; A. Grinvald, D. Nelson, and I. Vanzetta, 「静止背景での動体の特性"Characterization of moving objects in a stationary background"」.
1 1 . W. Cui, L. E. Ostrander, and B. Y. Lee, 「光波長の関数としての血液および細胞の体内反射"In vivo reflectance of blood and tissue as a function of light wavelength,"」 IEEE Trans. Biomed. Eng. 37, 632-639 (1990).
Claims (13)
- 生体(101)の血管系と吸収および/または散乱を介して相互作用させるため前記生体(101)の皮膚を貫通する光で前記生体(101)を照射する工程と、
前記生体から反射された光を合焦されたフレーム(201、601)の形式で画像取得ユニット(106、107)に集光させる工程と、
前記一連のフレーム(201、601)を前記画像取得ユニット(106、107)で取得する工程と、を含む心臓血管脈拍波動を視覚化する方法において、
前記フレーム(201、601)を、前記生体(101)の周期的な生理的プロセスに同期する基準関数(602)で乗算する工程と、
前記基準関数(602)で乗算した各画素を前記フレーム(201、601)に亘って総和して相関画像を形成する工程と、
前記生体(101)の中の血液脈拍波動の動きを表す出力画像を、前記生体(101)の周期的生理的プロセスの位相の関数として前記相関画像から算出する工程と、を含む
ことを特徴とする心臓血管脈拍波動を視覚化する方法。 - 心臓脈拍に同期する血液脈拍波動を視覚化することを特徴とする請求項1に記載の方法。
- 呼吸に同期する前記血液脈拍波動を視覚化することを特徴とする請求項1に記載の方法。
- 少なくとも2つの偏光フィルタ(103、104)を用いて前記光源(102)の反射光をフィルタし、
前記2つの偏光フィルタの第1の偏光フィルタ(103)を光源(102)および前記生体(101)間に位置させ、前記2つの偏光フィルタの第2の偏光フィルタ(104)を前記照射した生体(101)および前記画像取得ユニット(106、107)間に位置させる
ことを特徴とする請求項1〜3の何れか1つに記載の方法。 - 前記フレーム(201、601)を、前記生体の準周期生理的プロセスの最も高いレートよりも2倍以上高いフレームレートを有する画像取得デバイス(106、107)で取得することを特徴とする請求項1〜4の何れか1つに記載の方法。
- 前記フレーム(201、601)の平均強度振動の分析の後に前記基準関数(602)を形成することを特徴とする請求項1〜5の何れか1つに記載の方法。
- 前記基準関数(602)が周期的な生理的プロセスを表す外部信号から形成されることを特徴とする請求項1〜5の何れか1つに記載の方法。
- 前記出力画像を前記フレーム(201、601)から形成し、
位相シフト相関画像の空間分布を形成することで前記出力画像の各フレームを形成し、該位相シフト相関画像が異なる指数位相係数で乗算された前記相関画像の実数部とされる
ことを特徴とする請求項6または7に記載の方法。 - 前記出力画像において前記相関画像の振幅の空間分布が示されることを特徴とする請求項8に記載の方法。
- 前記出力画像における前記振幅の空間分布が前記位相シフト相関画像の相対位相を表わす疑似色を用いてコード化されることを特徴とする請求項9に記載の方法。
- 生体(101)を照射する少なくとも1つの光源(102)と、
前記生体(101)から反射される光を集光し前記生体(101)の合焦画像(201、601)を形成する光学手段(105)を有する画像取得ユニット(106、107)と、
処理ユニット(109)と、
表示ユニット(110)と、
前記画像取得ユニット(106、107)、前記処理ユニット(109)、および前記表示ユニット(110)の間の通信接続と、
を備えた、生体の血液脈拍波動を視覚化する装置において、
前記処理ユニット(109)に、前記画像取得ユニット(106、107)で取得された前記一連のフレーム(201、601)を受信する手段、および請求項1〜8の何れか1つに記載の前記フレーム(201、601)を処理する手段、とが設けられていることを特徴とする装置。 - 前記光源(102)が、可視、近赤外線、または赤外線のスペクトルの光を発生する光源とされることを特徴とする請求項11に記載の装置。
- 前記光源(102)が、前記画像取得デバイス(106、107)のフレーム取得に同期する異なる波長のパルス光を発生する光源とされることを特徴とする請求項11に記載の装置。
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FI20115053 | 2011-01-19 | ||
FI20115053A FI20115053A0 (fi) | 2011-01-19 | 2011-01-19 | Menetelmä ja järjestelmä kardiovaskulaaristen sykeaaltojen visualisoimiseksi |
PCT/FI2012/050031 WO2012098289A1 (en) | 2011-01-19 | 2012-01-13 | A method and system for visualization of cardiovascular pulsation waves |
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EP (1) | EP2665411B1 (ja) |
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Cited By (7)
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JP2017512576A (ja) * | 2014-03-31 | 2017-05-25 | コーニンクレッカ フィリップス エヌ ヴェKoninklijke Philips N.V. | 腫瘍検出及び/又はモニタリングに関するデバイス、システム及び方法 |
JP2017532151A (ja) * | 2014-10-30 | 2017-11-02 | コーニンクレッカ フィリップス エヌ ヴェKoninklijke Philips N.V. | 生理学的情報を抽出する装置、システム、及び方法 |
KR20170130455A (ko) * | 2015-05-19 | 2017-11-28 | 구글 엘엘씨 | 광학적 중심 정맥압 측정 |
JP2018502622A (ja) * | 2014-12-17 | 2018-02-01 | コーニンクレッカ フィリップス エヌ ヴェKoninklijke Philips N.V. | 血流撮像 |
WO2018142865A1 (ja) * | 2017-02-02 | 2018-08-09 | Kddi株式会社 | 脈拍測定装置、ウェアラブル装置及び脈拍測定方法 |
JP2019076178A (ja) * | 2017-10-20 | 2019-05-23 | 株式会社デンソー | 生体信号検出装置 |
JP2022172305A (ja) * | 2018-01-05 | 2022-11-15 | ラドウィスプ プライベート リミテッド | 診断支援プログラム |
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WO2017045976A1 (en) | 2015-09-18 | 2017-03-23 | Koninklijke Philips N.V. | Device and method for migraine monitoring |
EP3834714A1 (en) * | 2015-11-03 | 2021-06-16 | Fresenius Medical Care Holdings, Inc. | Method and apparatus of assessment of access flow in hemodialysis patients by video imaging processing |
EP3449818A4 (en) * | 2016-04-27 | 2019-04-17 | Asahi Kasei Kabushiki Kaisha | DEVICE, TERMINAL AND SYSTEM FOR BIOMETRIC INFORMATION |
WO2021026256A1 (en) * | 2019-08-08 | 2021-02-11 | Neuroptica, Llc | Systems and methods for imaging disease biomarkers |
US11607145B2 (en) | 2019-11-08 | 2023-03-21 | Fresenius Medical Care Holdings, Inc. | Techniques for determining characteristics of dialysis access sites using image information |
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- 2012-01-13 EP EP12736086.5A patent/EP2665411B1/en not_active Not-in-force
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JP2017512576A (ja) * | 2014-03-31 | 2017-05-25 | コーニンクレッカ フィリップス エヌ ヴェKoninklijke Philips N.V. | 腫瘍検出及び/又はモニタリングに関するデバイス、システム及び方法 |
JP2017532151A (ja) * | 2014-10-30 | 2017-11-02 | コーニンクレッカ フィリップス エヌ ヴェKoninklijke Philips N.V. | 生理学的情報を抽出する装置、システム、及び方法 |
JP2018502622A (ja) * | 2014-12-17 | 2018-02-01 | コーニンクレッカ フィリップス エヌ ヴェKoninklijke Philips N.V. | 血流撮像 |
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CN107427238A (zh) * | 2015-05-19 | 2017-12-01 | 谷歌公司 | 光学中心静脉压测量 |
KR102025313B1 (ko) * | 2015-05-19 | 2019-09-25 | 구글 엘엘씨 | 광학적 중심 정맥압 측정 |
WO2018142865A1 (ja) * | 2017-02-02 | 2018-08-09 | Kddi株式会社 | 脈拍測定装置、ウェアラブル装置及び脈拍測定方法 |
JP2019076178A (ja) * | 2017-10-20 | 2019-05-23 | 株式会社デンソー | 生体信号検出装置 |
JP2022172305A (ja) * | 2018-01-05 | 2022-11-15 | ラドウィスプ プライベート リミテッド | 診断支援プログラム |
JP7310048B2 (ja) | 2018-01-05 | 2023-07-19 | ラドウィスプ プライベート リミテッド | 診断支援プログラム |
Also Published As
Publication number | Publication date |
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EP2665411B1 (en) | 2018-05-23 |
EP2665411A4 (en) | 2017-02-08 |
EP2665411A1 (en) | 2013-11-27 |
WO2012098289A1 (en) | 2012-07-26 |
US20130274610A1 (en) | 2013-10-17 |
JP5939649B2 (ja) | 2016-06-22 |
FI20115053A0 (fi) | 2011-01-19 |
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