access icon openaccess Bilateral photoplethysmography analysis for arteriovenous fistula dysfunction screening with fractional-order feature and cooperative game-based embedded detector

The bilateral photoplethysmography (PPG) analysis for arteriovenous fistula (AVF) dysfunction screening with a fractional-order feature and a cooperative game (CG)-based embedded detector is proposed. The proposed detector uses a feature extraction method and a CG to evaluate the risk level for AVF dysfunction for patients undergoing haemodialysis treatment. A Sprott system is used to design a self-synchronisation error formulation to quantify the differences in the changes of blood volume for the sinister and dexter thumbs’ PPG signals. Bilateral PPGs exhibit a significant difference in rise time and amplitude, which is proportional to the degree of stenosis. A less parameterised CG model is then used to evaluate the risk level. The proposed detector is also studied using an embedded system and bilateral optical measurements. The experimental results show that the risk of AVF stenosis during haemodialysis treatment is detected earlier.

Inspec keywords: feature extraction; blood; blood vessels; photoplethysmography; patient treatment; medical signal processing

Other keywords: PPG; Sprott system; feature extraction; haemodialysis treatment; cooperative game-based embedded detector; AVF dysfunction; rise time; bilateral photoplethysmography analysis; self-synchronisation error formulation; blood volume changes; stenosis; arteriovenous fistula dysfunction screening; bilateral optical measurements; fractional-order feature

Subjects: Signal processing and detection; Optical and laser radiation (biomedical imaging/measurement); Digital signal processing; Patient care and treatment; Biology and medical computing; Patient diagnostic methods and instrumentation; Patient care and treatment; Haemodynamics, pneumodynamics; Optical and laser radiation (medical uses)

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