Repository of Phase Signals for Algorithm Development and Testing in CAD in CHINA (CADChina)
Repository of Phase Signals for Algorithm Development and Testing in Subjects With Coronary Artery Disease in China
調査の概要
詳細な説明
Analytics 4 Life (A4L) is a medical information technology company that uses advanced signal processing techniques for the purposes of assessing and diagnosing disease. A4L is currently focused on developing a non-invasive solution for the assessment of significant coronary artery disease using the cardiac Phase Space Tomography Analysis (cPSTA) System. Through proprietary variable extraction to define phase space signals as metrics in mathematical terms and machine learned formulas, A4L has developed a cost-effective solution to collect and analyze phase signals as data indicative of cardiac performance. The cPSTA System passively reconstructs and displays images from this data using topological data analysis (TDA) to provide a computationally tractable method of interrogating the complex physiological processes of the heart with the intent to understand and characterize the cardiac tissue properties.
A4L has providing the Phase Signal Recorder (PSR) to the sponsor for use in this study. The primary objective of this study is to collect resting phase signals from eligible subjects using the Phase Space Recorder (PSR) prior to coronary angiography for the purpose of machine learning and testing an algorithm developed to assess the presence of significant coronary artery disease (CAD).The definition of significant CAD, which is well established in the literature, is either the presence of a stenosis ≥50% by angiography or reduced blood flow of <0.80as measured by Fractional Flow Rate (FFR) or instantaneous free-wave ratio (iFR) <0.89.Each subject's CAD status will be assessing the presence of significant CAD in the major coronary arteries including the left main artery (LMA), left anterior descending artery (LAD), circumflex artery (LCX), and the right coronary artery (RCA) and their distributions.
Accurately assessing the presence or absence of CAD and evaluating other physiologic measures is vital to the assessment of cardiac health/illness. As such, the following additional assessments are planned to support further support goal: establishing a ROC curve for the primary objective to describe a full range of sensitivity and specificity trade-offs; and, developing and testing machine-learned algorithms to validate a clinically relevant sensitivity and specificity for the identification of significant CAD specific to perfusion regions (LAD, LCX, and RCA).
研究の種類
入学 (予想される)
段階
- 適用できない
連絡先と場所
参加基準
適格基準
就学可能な年齢
健康ボランティアの受け入れ
受講資格のある性別
説明
Inclusion Criteria:
- Patients ≥ 18 years old
- Meets criteria for coronary angiography
- Scheduled to undergo cardiac catheterization with coronary angiography
- Ability to understand the requirements of the study and to provide written informed consent
Exclusion Criteria:
- Prior coronary artery bypass grafting (CABG)
- Prior heart valve replacement
- Previous sustained or paroxysmal atrial or ventricular arrythmia;
- Infiltrative myocardial disease (amyloid, sarcoid, right ventricular dysplasia);
- Presence of cardiac implantable electronic device (CIED), including implantable cardioverter defibrillator (ICD), pacemaker (PM), implantable loop recorders and other monitors
- Implantable Neuro-stimulators
- Congenital Heart Disease
- Pregnant or breast feeding
- Currently taking any Type IA, IC or III antiarrhythmics
- Any history of amiodarone use
- Clinically significant chest deformity (e.g., pectus excavatum or pectus carinatum)
- Breast implants
- Neuromuscular Disease if the condition results in tremor or muscle fasciculations
研究計画
研究はどのように設計されていますか？
デザインの詳細
- 主な目的：診断
- 割り当て：なし
- 介入モデル：単一グループの割り当て
- マスキング：なし（オープンラベル）
武器と介入
参加者グループ / アーム |
介入・治療 |
|---|---|
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実験的：cPSTA GROUP
Patients who meet the study's inclusion and exclusion criteria, including signing the informed consent form, subjects will undergo cardiac Phase Space Tomography Analysis (cPSTA) signal acquisition prior to their scheduled cardiac catheterization on the day of the procedure.
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The cPSTA System is a medical device system that uses passive tomography to analyze a patient's phase space data to identify the presence of significant coronary artery disease.
The cPSTA System consists of several components that work together to obtain, transmit, analyze the data, and display the results, including the Phase Signal Acquisition System (PSAQ System), which is the Phase Signal Recorder (PSR) and the Phase Signal Data Repository (PSDR); analytical software; and secure web portal.
For this study only the PSAQ System is used by the clinical site for the purposes of acquiring and transmitting the signal.
All enrolled patients will perform cPSTA signal recording.
他の名前：
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この研究は何を測定していますか？
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
positive coronary artery disease
時間枠：7 day after index procedure
|
significant stenosis measured by coronary angiography
|
7 day after index procedure
|
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positive cardiac Phase Space Tomography Analysis
時間枠：7 day after index procedure
|
positive result measured by cardiac Phase Space Tomography Analysis
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7 day after index procedure
|
協力者と研究者
捜査官
- 主任研究者：Juying Qian, M.D.、Shanghai Zhongshan Hospital
研究記録日
主要日程の研究
研究開始 (予想される)
一次修了 (予想される)
研究の完了 (予想される)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (実際)
学習記録の更新
投稿された最後の更新 (実際)
QC基準を満たした最後の更新が送信されました
最終確認日
詳しくは
この情報は、Web サイト clinicaltrials.gov から変更なしで直接取得したものです。研究の詳細を変更、削除、または更新するリクエストがある場合は、register@clinicaltrials.gov。 までご連絡ください。 clinicaltrials.gov に変更が加えられるとすぐに、ウェブサイトでも自動的に更新されます。
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