Biomedical Engineering Reference
In-Depth Information
diagnostic system, which can detect vibration signals of murmurs deriving
from stenosis of the coronary artery in their early stages, that it is possible
to diagnose abnormal conditions, and prevent and treat heart disease. What
has been shown is a diagnostic system for coronary artery disease comprising
a detector of the vibration signal of environmental noise, and vibration signal
detected by the detector of vibration signal of subject and the detector of the
detector of vibration signal of environmental noise is filtered to cancel internal
noise and external noise, and the filtered vibration signal is amplified and
recorded. The above detector of the vibration signal of the subject has one
or a number of laser source heads and a vibration detecting sensor with a
laser displacement gauge and a three-axis accelerometer, and the detector of
the vibration signal of the environmental noise has a three-axis accelerometer
and a supersensitive microphone.
The new technique is a potentially powerful technique, but it is still in
need of further technical refinement before it is introduced for routine clinical
use.
A visual presentation of comparativ signal spectra can be provided on the
CRT in the form of a side-by-side window or split-screen presentation of the
earlier spectra and the later spectra, or an overlay presentation.
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