Key result
Ultrasonic transceiver model accurately predicts peak systolic velocities in normal and stenotic carotid arteries.
Why the study?
Does the proposed empirical model accurately predict peak systolic velocity and hemodynamic characteristics in carotid artery stenosis?
Does the proposed empirical model accurately predict peak systolic velocity and hemodynamic characteristics in carotid artery stenosis?
The proposed empirical model and ultrasonic transceiver accurately predict carotid artery stenosis hemodynamics, validated by phantom experiments and COMSOL simulations.
Answers are grounded in this paper and cite their sources.
Does not support clinical use of the model; leaves open human validation of ultrasonic carotid velocity prediction.
This study presents an empirically physicalbased model to analyze carotid artery hemodynamics in the common carotid artery (CCA) and internal carotid artery (ICA) under varying degrees of stenosis, utilizing the implemented ultrasonic transceiver. The internal carotid artery model integrates essential parameters, resistance (Rstenosis, Rdistal), inertia (Lsysinertia, Lrecoil), and compliance recovery (Cstenosis, Cdistal), to characterize blood flow acceleration, while the common carotid model utilizes the resistance (Rblood, Rdistal_1), inertia (Lsyscca, Lrecoil_1), and compliance (Cdistal_1) to quantify peak systolic velocity responses. The proposed ultrasound transceiver was validated using the Doppler string phantom (model CIRS-043A). Experimental results derived from the proposed empirical model of ICA and CCA using the implemented ultrasonic transceiver closely aligned with theoretical PSV values: 0.84 m/s (ideal: 0.81 m/s) for normal carotid arteries and 2.00 m/s (ideal: 1.83 m/s) for stenotic arteries. The proposed model demonstrated consistent agreement with clinical PSV data across stenosis levels from 5% to 95%. Additionally, COMSOL-based simulations for moderate (60%) and severe (80%) stenosis validated the model’s capability to accurately predict hemodynamic characteristics in the pre-stenotic, narrowest, and post-stenotic regions. Measured results demonstrate that the proposed model in the implemented transceiver predicts carotid artery stenosis and exhibits a physical basis validated by COMSOL Multiphysics.
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Lin et al. (2025) studied Carotid artery stenosis. Empirical physical-based model using an ultrasonic transceiver vs. Theoretical PSV values and COMSOL simulations was evaluated on Peak systolic velocity (PSV). An empirical physical-based model using an ultrasonic transceiver accurately predicted peak systolic velocities of 0.84 m/s for normal and 2.00 m/s for stenotic carotid arteries.
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