JP6263635B2 - 医学的データのエントロピーの程度の検出の方法およびデバイス - Google Patents
医学的データのエントロピーの程度の検出の方法およびデバイス Download PDFInfo
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- 238000000034 method Methods 0.000 title claims description 35
- 230000006835 compression Effects 0.000 claims description 21
- 238000007906 compression Methods 0.000 claims description 21
- 206010003658 Atrial Fibrillation Diseases 0.000 claims description 12
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 claims description 10
- 238000005259 measurement Methods 0.000 claims description 9
- 206010003119 arrhythmia Diseases 0.000 claims description 7
- 230000006793 arrhythmia Effects 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 7
- 210000000707 wrist Anatomy 0.000 claims description 6
- 201000010099 disease Diseases 0.000 claims description 4
- 238000004590 computer program Methods 0.000 claims description 3
- 230000002123 temporal effect Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000002565 electrocardiography Methods 0.000 description 9
- 238000004458 analytical method Methods 0.000 description 7
- 230000033764 rhythmic process Effects 0.000 description 7
- 238000013186 photoplethysmography Methods 0.000 description 6
- 238000004891 communication Methods 0.000 description 4
- 230000001788 irregular Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000002559 palpation Methods 0.000 description 2
- 230000004962 physiological condition Effects 0.000 description 2
- 230000036772 blood pressure Effects 0.000 description 1
- 238000004422 calculation algorithm Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000003331 infrared imaging Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 210000005259 peripheral blood Anatomy 0.000 description 1
- 239000011886 peripheral blood Substances 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 230000036387 respiratory rate Effects 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/024—Detecting, measuring or recording pulse rate or heart rate
- A61B5/02405—Determining heart rate variability
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/316—Modalities, i.e. specific diagnostic methods
- A61B5/318—Heart-related electrical modalities, e.g. electrocardiography [ECG]
- A61B5/346—Analysis of electrocardiograms
- A61B5/349—Detecting specific parameters of the electrocardiograph cycle
- A61B5/352—Detecting R peaks, e.g. for synchronising diagnostic apparatus; Estimating R-R interval
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/024—Detecting, measuring or recording pulse rate or heart rate
- A61B5/02438—Detecting, measuring or recording pulse rate or heart rate with portable devices, e.g. worn by the patient
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/024—Detecting, measuring or recording pulse rate or heart rate
- A61B5/0245—Detecting, measuring or recording pulse rate or heart rate by using sensing means generating electric signals, i.e. ECG signals
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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
- G16H10/00—ICT specially adapted for the handling or processing of patient-related medical or healthcare data
- G16H10/60—ICT specially adapted for the handling or processing of patient-related medical or healthcare data for patient-specific data, e.g. for electronic patient records
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2505/00—Evaluating, monitoring or diagnosing in the context of a particular type of medical care
- A61B2505/07—Home care
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/024—Detecting, measuring or recording pulse rate or heart rate
- A61B5/02416—Detecting, measuring or recording pulse rate or heart rate using photoplethysmograph signals, e.g. generated by infrared radiation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/316—Modalities, i.e. specific diagnostic methods
- A61B5/318—Heart-related electrical modalities, e.g. electrocardiography [ECG]
- A61B5/332—Portable devices specially adapted therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6802—Sensor mounted on worn items
- A61B5/681—Wristwatch-type devices
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- Heart & Thoracic Surgery (AREA)
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- Veterinary Medicine (AREA)
- Physiology (AREA)
- Epidemiology (AREA)
- Primary Health Care (AREA)
- Signal Processing (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
Description
Claims (14)
- 波形信号から医学データのエントロピーの程度を決定する方法であって、
該方法は、
波形として前記医学データを受信するステップと、
標準ポイント、すなわち前記波形の頂点(apex)を検出するステップと、
前記波形の拍動から拍動の期間を決定するステップと、期間を一時的心拍数周波数に変換するステップと、
前記変換された一時的心拍数周波数のシーケンシャル・データを使用して時系列を形成するステップと、
前記シーケンシャル・データの差分の形で、前記時系列を符号化するステップと、
圧縮の程度を表す結果を形成するように本質的に損失がない圧縮方法を用いて前記符号化された差分を圧縮するステップであって、該結果は、前記医学データのエントロピーの程度を表す、ステップと、
のステップを含む、方法。 - 前記医学データは、手首または指に位置する周辺センサによって測定された脈波データである、請求項1に記載の方法。
- 前記医学データは、心電図記録信号(ECG)からのR波データである、請求項1または2に記載の方法。
- 前記医学データは、連続的および非侵襲的に測定される、請求項1ないし3のいずれか1項に記載の方法。
- 前記医学データのエントロピーの前記程度の決定は、前記検出された心拍数変動のエントロピーの前記程度に関係する、請求項1ないし4のいずれか1項に記載の方法。
- 連続的および非侵襲的測定は、光電式容積脈波記録法(PPG:photoplethysmography)センサ、赤外線(IR)センサ、容量圧力センサ、または、手首または指において脈波を記録するように構成されるCCDセンサによって、または、従来のECG信号から、または、これらの組合せからインプリメントされる、請求項1ないし5のいずれか1項に記載の方法。
- シーケンシャル・データの差分の形における、前記時系列の前記符号化は、デルタ符号化である、請求項1ないし6のいずれか1項に記載の方法。
- 前記圧縮方法は、LZWまたはLZMAのロスレス圧縮方法である、請求項1ないし7のいずれか1項に記載の方法。
- 波形信号から医学データのエントロピーの程度を決定するデバイスであって、該デバイスは、
波形として前記医学データを受信し、
標準ポイント、すなわち前記波形の頂点(apex)を検出し、
前記波形の拍動から拍動の期間を決定し、
前記期間を一時的心拍数周波数に変換し、
前記変換された一時的心拍数周波数のシーケンシャル・データを使用して時系列を形成し、
シーケンシャル・データの差分の形で、前記時系列を符号化し、
圧縮の程度を表す結果を形成するように本質的に損失がない圧縮方法を用いて前記符号化した差分を圧縮する
ように構成され、
前記デバイスは、前記圧縮の程度を表す前記結果に基づいて、前記医学データのエントロピーの前記程度の決定するように構成される、デバイス。 - 前記デバイスは、モバイルまたは携帯デバイスまたはリストバンド・デバイスであり、
前記デバイスが、前記結果が所定の第1の閾値を超えるならば、前記デバイスは、不整脈、心房細動を含む医学的障害を示唆するように構成され、
前記結果がゼロと所定の第2の閾値との間にあるならば、前記デバイスが、重症疾患を示唆するように構成される、
ように、前記医学データの前記エントロピーの前記程度の決定するように構成される、
請求項9に記載のデバイス。 - 前記デバイスは、前記医学データを連続的および非侵襲的に測定するように構成される、請求項9に記載のデバイス。
- 前記デバイスは、光電式容積脈波記録法(PPG:photoplethysmography)センサ、赤外線(IR)センサ、容量圧力センサ、または、手首または指において脈波を記録するように構成されるCCDセンサによって、または、従来のECG信号から、または、これらの組合せからインプリメントされる、連続的および非侵襲的測定を実行する、請求項9または10に記載のデバイス。
- 前記デバイスは、LZWまたはLZMAのロスレス圧縮方法を使用するように構成される、請求項9ないし12のいずれか1項に記載のデバイス。
- 波形信号から医学データのエントロピーの程度を決定するためのコンピュータ・プログラムであって、該プログラムは、符号化手段を備え、
該符号化手段は、前記プログラムが、請求項9ないし13のいずれか1項に記載のデバイスの上のデータ処理手段の上で動作するとき、請求項1ないし8のいずれか1項に記載された方法のすべてのステップを実行するように構成されることを特徴とする、コンピュータ・プログラム。
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PCT/FI2015/050020 WO2015107266A1 (en) | 2014-01-16 | 2015-01-15 | Method and device for the detection of the degree of entropy of medical data |
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US11123014B2 (en) | 2017-03-21 | 2021-09-21 | Stryker Corporation | Systems and methods for ambient energy powered physiological parameter monitoring |
EP3503408A1 (en) | 2017-12-22 | 2019-06-26 | Nokia Technologies Oy | Storing a signal to a memory |
JP7060569B2 (ja) * | 2019-12-16 | 2022-04-26 | ユニオンツール株式会社 | 心房細動検出システム |
JP7256832B2 (ja) * | 2021-01-19 | 2023-04-12 | ユニオンツール株式会社 | 心房細動検出システム |
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