title: Performance evaluation of three methods for respiratory signal estimation from the electrocardiogram.
abstract: A comparative study of three methods for estimating respiratory signal through electrocardiogram (ECG) was carried out. The three methods analyzed were based on R wave area, R peak amplitude and heart rate variability (HRV). For each method, cross-correlation coefficient and spectral coherence in a range of frequencies up to 0.5 Hz were computed between the ECG derived respiratory signals (EDR) and the three real respiratory signals: oronasal, and two inductance plethysmographies recordings (chest and abdominal). Results indicate that EDR methods based on R wave area and HRV are better correlated and show a wider spectral coherence with real respiratory signals than the other EDR method based on R peak amplitude.
authors.affiliation: Gabinete de Tecnología Médica, Universidad Nacional de San Juan, Argentina. lcorrea@gateme.unsj.edu.ar
authors.forename: Lorena S
authors.initials: LS
authors.lastname: Correa
authors.forename: Eric
authors.initials: E
authors.lastname: Laciar
authors.forename: Abel
authors.initials: A
authors.lastname: Torres
authors.forename: Raimon
authors.initials: R
authors.lastname: Jane
mesh_terms: D000465:Algorithms; D003201:Computers; D004562:Electrocardiography / Q000379:methods*; D005189:False Positive Reactions; D006339:Heart Rate; D006801:Humans; D010991:Plethysmography / Q000379:methods*; D015203:Reproducibility of Results; D012119:Respiration; D012815:Signal Processing, Computer-Assisted; D012984:Software; D013997:Time Factors