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- W4200344810 abstract "Abstract Considering accuracy/precision cut-offs of 5 ± 8 mmHg and cut-off values for inter-class correlation coefficients (ICC=0.37...1, from DIN EN ISO 81060-2), absolute and relative errors in time independent measurement of blood pressure changes with non-invasive intermittent devices (NiBP) are derived mathematically for mean arterial blood pressure range of 40-180 mmHg. As a clinically relevant value for change of arterial blood pressure 20% of the baseline blood pressure is considered. The mean ratio between the change of BP measured by the NiBP and measured by the invasive reference device (TE % ) were proposed as quality measure for the evaluation of NiBP device tracking capability. The proposed measure TE % is theoretically independent of absolute accuracy but depends on precision and ICC of a device. NiBP devices show considerable maximum TE% of 41% in tracking mean blood pressure changes respectively. In 10% of the measurements in the low blood pressure range TE% exceeding 100%. The mean 50th/90th TE% percentile over the whole blood pressure range were 25/61%, respectively. Furthermore, TE% was relatively insensitive to assumed blood pressure range but sensitive to ICC. NiBP devices have high relative error in tracking blood pressure changes that make those devices not well-suited for tracking blood pressure changes. The proposed tracking error allows the definition of reasonable accuracy/precision requirements of NBP devices." @default.
- W4200344810 created "2021-12-31" @default.
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- W4200344810 date "2021-10-01" @default.
- W4200344810 modified "2023-09-27" @default.
- W4200344810 title "Tracking blood pressure changes by means of non-invasive intermittent blood pressure measurements in clinical application" @default.
- W4200344810 doi "https://doi.org/10.1515/cdbme-2021-2208" @default.
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