| 摘要 |
<p> Provided is art for supporting the diagnosis of central/obstructive sleep apnea, the art enabling the accurate diagnosis of central/obstructive sleep apnea in a patient having sleep apnea syndrome (SAS). The present invention is equipped with: a raw waveform data storage unit (11) that stores raw waveform data including the respiratory motion and heart sounds from a subject; an apnea period detection unit (12) that extracts, from the stored raw waveform data, a respiratory motion frequency component of the raw waveform, and detects an apnea period; an FFT processing unit (13) that performs a fast Fourier transform on data in the raw waveform data pertaining to the apnea period, and generates a power spectral density (PSD) for the apnea period; a PSD aggregate value calculation unit (14) that calculates a PSD aggregate value for a prescribed frequency domain; a PSD pattern matching unit (15) that evaluates whether the pattern of the generated PSD matches a PSD pattern for central apnea; and a display unit (17) that displays the raw waveform, the respiratory motion frequency component of the raw waveform, and the PSD.</p> |
