cochlear aqueduct การใช้

• The inventors also proposed formulae that relate ICP to the intensity or phase of the measured OAE signal, and described how the other physiological signals or behaviors that are known to affect ICP such as small oscillations of ICP with each heart beat, respiration, or posture changes, can be used to confirm the validity of the obtained measurements ( e . g . the absence of modulation of the measured OAE phase with respiration may indicate occlusion of the cochlear aqueduct, in which case OAE cannot provide any information about ICP ).