Key result
A novel bioimpedance ring sensor accurately estimated continuous blood pressure with low mean errors for systolic (0.11 ± 5.27 mmHg) and diastolic (0.11 ± 3.87 mmHg) pressures compared to a reference cuff.
Why the study?
Conventional ambulatory blood pressure devices use inflating cuffs that are bulky, intrusive, and impractical for frequent or continuous measurement.
Does a wearable ring bioimpedance device accurately estimate continuous blood pressure in human participants?
Population
Human participants providing experimental data for blood pressure estimation
Authors
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Wearable ring BP validation supports further device development; leaves open clinical outcome benefits and practice adoption.
Does a wearable ring bioimpedance device accurately estimate continuous blood pressure in human participants?
Effect estimate: SBP mean error 0.11 ± 5.27 mmHg, DBP mean error 0.11 ± 3.87 mmHg
A novel ring-shaped bioimpedance sensor demonstrates high correlation and low error for continuous, cuffless blood pressure monitoring across a wide range of blood pressures.
Sel et al. (2023) studied Healthy volunteers (n=16). Bioimpedance ring sensor vs. Finapres NOVA finger cuff (reference) was evaluated on Estimation error of systolic and diastolic blood pressure (SBP mean error 0.11 ± 5.27 mmHg, DBP mean error 0.11 ± 3.87 mmHg). A novel bioimpedance ring sensor accurately estimated continuous blood pressure with low mean errors for systolic (0.11 ± 5.27 mmHg) and diastolic (0.11 ± 3.87 mmHg) pressures compared to a reference cuff.
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