Why the study?
Does an angle-based respiratory signal extraction method from VCG improve agreement with actual respiratory frequencies compared to QRS area-derived signals in healthy subjects?
Does an angle-based respiratory signal extraction method from VCG improve agreement with actual respiratory frequencies compared to QRS area-derived signals in healthy subjects?
A novel VCG angle-based method accurately estimates respiratory frequency with a low median error of 4.2% in healthy subjects.
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Supports angle-based VCG respiratory estimation in research; hypothesis-generating and requires validation before clinical use.
Leanderson et al. (2003) studied this question.
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