基金会的模型使得携带的可穿戴设备能够在艾滋病毒感染者中对心血管疾病进行信号查
Munib Mesinovic1, Hai Ho Bich2, Ly Vo Trieu3
1Department of Engineering Science, University of Oxford, Oxford, UK. munib.mesinovic@eng.ox.ac.uk.
Communications medicine
|January 16, 2026
概括
基金会的模型显示,在资源有限的环境中,低成本的心血管疾病查是有前途的,特别是对于艾滋病毒感染者. 该PaPaGei嵌入方法证明了有效性,尽管需要进行更大规模的研究来验证.
科学领域:
- 医疗保健中的人工智能
- 心血管疾病研究研究
- 全球卫生技术 全球卫生技术
背景情况:
- 由于基础设施和计算限制,心血管疾病 (CVD) 查在资源有限的环境中具有挑战性.
- 患有人类免疫缺陷病毒 (HIV) 的人患心血管疾病风险较高,但往往无法获得专业诊断.
- 经过预训练的生理基础模型提供了通过可穿戴传感器进行低成本心血管疾病查的潜力.
研究的目的:
- 从基础模型来评估预训练的生理嵌入,用于CVD检测.
- 评估这些模型在资源有限的环境中对艾滋病毒感染者的适用性.
- 将基础模型方法与传统CVD查方法进行比较.
主要方法:
- 分析了来自越南80名艾滋病毒感染者的光电显微镜 (PPG) 信号.
- 预先训练的生理嵌入 (PaPaGei,NormWear) 被评估为心血管疾病检测.
- 在零射击部署,当地训练有素的分类器和传统方法之间进行了性能比较.
主要成果:
- 该PaPaGei嵌入方法实现AUC为0.769和平均精度为0.489.
- 这种表现在数值上高于零射击NormWear,PCA特征和监督临床模型.
- 嵌入PaPaGei揭示了与药物和胆固醇变异性相关的临床连贯结构.
结论:
- 初步发现表明,在资源有限的环境中部署基础模型的潜在框架.
- PaPaGei嵌入方法需要本地标签,但避免了密集的模型微调.
- 在临床实施之前,在较大的队列中进行多中心验证至关重要.
相关概念视频
Blood Studies for Cardiovascular System I: Cardiac Biomarkers
801
Cardiac biomarkers are enzymes, proteins, and hormones released into the blood when cardiac cells are injured. They are powerful tools for triaging.
The essential diagnostic tools for detecting myocardial necrosis and monitoring individuals suspected of having acute coronary syndrome (ACS) include:
Troponins
Troponins, particularly cardiac troponins I and T, are the most precise and sensitive markers of myocardial injury. They are detectable within 4-6 hours of myocardial injury and remain...
The essential diagnostic tools for detecting myocardial necrosis and monitoring individuals suspected of having acute coronary syndrome (ACS) include:
Troponins
Troponins, particularly cardiac troponins I and T, are the most precise and sensitive markers of myocardial injury. They are detectable within 4-6 hours of myocardial injury and remain...
801
Coronary Artery Disease IV: Preventive Measures
590
Effective preventive measures for coronary artery disease (CAD) focus on controlling modifiable risk factors, including cholesterol abnormalities and lifestyle changes.Cholesterol ManagementFirst, the Mediterranean diet and the American Heart Association advocate for maintaining low-density lipoprotein (LDL) cholesterol levels below 100 mg/dL, with a more stringent recommendation of below 70 mg/dL for individuals at high risk. LDL cholesterol, often termed "bad cholesterol," can lead to the...
590
Peripheral Artery Disease I: Introduction
314
Peripheral artery disease (PAD) predominantly results from atherosclerosis, which involves the accumulation of fatty deposits, or plaques, within the walls of arteries. This causes them to narrow and harden, significantly reducing blood flow. PAD predominantly affects the legs, particularly the arteries supplying the thighs and calves. In rare cases, it may involve other arteries, including those in the arms.Etiology of PAD:The principal cause of PAD is atherosclerosis, which results from fatty...
314
Blood Studies for Cardiovascular System II: CRP, Hcy, and Cardiac Natriuretic Peptide Markers
541
Cardiac biomarkers are critical in diagnosing, prognosing, and managing cardiovascular diseases. Routine measurement of specific biomarkers such as B-type natriuretic peptide (BNP), C-reactive protein (CRP), and homocysteine (Hcy) is common practice in clinical settings to evaluate heart function and predict cardiovascular events.
These markers indicate stress or strain on the heart muscle:
Natriuretic Peptides (BNP)
Cardiac myocytes produce these hormones in response to ventricular stretching...
These markers indicate stress or strain on the heart muscle:
Natriuretic Peptides (BNP)
Cardiac myocytes produce these hormones in response to ventricular stretching...
541
Coronary Artery Disease I: Introduction
890
Coronary Artery Disease (CAD): An Overview with Scientific InsightsCoronary Artery Disease (CAD), often referred to as C-A-D, is a prevalent blood vessel disorder classified under the broader category of atherosclerosis. Atherosclerosis is a pathological process characterized by the hardening and narrowing of arteries due to the accumulation of atherosclerotic plaques. These plaques are composed of cholesterol, fatty substances, inflammatory cells, calcium, and fibrin, reducing blood flow to...
890
Pulse rhythm
1.3K
Pulse rhythm refers to the pattern of pulsations within specific intervals, offering valuable insights into the regularity or irregularity of the heart's beats as observed through the pattern of pulsation within specific intervals. A regular pulse exhibits a consistent heart rate with uniform waveforms and pulsation force, variations of which can be classified as normal, weak, or bounding.
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac...
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac...
1.3K


