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Record W7132988548

Arterial Blood Pressure Estimation by Electrical Recording with a Vascular Cuff Electrode

2023· dissertation· W7132988548 on OpenAlexaff
Ali Howidi

Bibliographic record

VenueTSpace · 2023
Typedissertation
Language
FieldMedicine
TopicECG Monitoring and Analysis
Canadian institutionsToronto Rehabilitation Institute
Fundersnot available
KeywordsPhotoplethysmogramBlood pressureCuffConvolutional neural networkPipeline (software)Blood flowWaveformCarotid arteries
DOInot available

Abstract

fetched live from OpenAlex

This thesis explores the potential of utilizing bioelectric signals, specifically electro-vasculargrams (EVG), to indicate blood flow and predict blood pressure (BP). The study involves a comprehensive analysis of EVG signals recorded from the carotid artery, demonstrating similarities to BP waveforms and capturing essential cardiovascular features like the dicrotic notch. By employing a specific data processing pipeline and convolutional neural network (CNN), the research successfully predicts BP using EVG signals alone, outperforming methods relying on electrocardiogram (ECG) and photoplethysmogram (PPG). The findings suggest that EVG has the potential for continuous BP monitoring without invasive arterial transducers, paving the way for closed-loop BP modulation systems. Despite some limitations, including hardware refinements and alternative modelsexploration, this research lays the groundwork for further advancements in EVG-based cardiovascular monitoring and personalized healthcare applications.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.001
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.375
Threshold uncertainty score0.999

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.001
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0010.002
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.008
GPT teacher head0.302
Teacher spread0.294 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

Study designBench or experimental
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations0
Published2023
Admission routes1
Has abstractyes

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