| 摘要 |
<p>The level of consciousness of a patient (i.e. the hypnotic state and/or the level of anaesthesia) is represented aurally. A measure of the patient's level of consciousness, such as the BIS index value, is obtained, and an audio signal is synthesised from that measure, and then output through a speaker. Both the volume and pitch of the audio signal may vary according to the BIS value being represented, so that a clinician can obtain an indication of the level of consciousness of the patient simply by listening to the sonification of the BIS value. The audio signal may comprise first and second audio components, with the first component representing the previous measure and the second component representing the current measure. The amplitude or pitch of the audio signal may be modulated to represent analgesia or paralysis of the patient.</p> |
