An ECG-derived sleep spectrogram provides a complementary approach to conventional sleep staging by dynamically tracking cardiopulmonary interactions.
A sleep spectrogram derived from information in a single-lead electrocardiogram can be used to dynamically track cardiopulmonary interactions. The 2 distinct (bimodal) regimes demonstrate a closer relationship with visual cyclic alternating pattern and non-cyclic alternating pattern states than with standard sleep stages. This technique may provide a complementary approach to the conventional characterization of graded non-rapid eye movement sleep stages.
Thomas et al. (Thu,) studied this question.