Why the study?
Does varying sensor contact force affect pulse transit time measurements?
Does varying sensor contact force affect pulse transit time measurements?
Sensor contact force significantly affects pulse transit time measurements, which must be accounted for when assessing arterial viscoelastic properties noninvasively.
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Contact force may confound PTT-based arterial assessments; leaves open standardization needs in diagnostic validation studies.
Teng et al. (2007) studied this question.
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