Method and apparatus for determining the thickness of bone...

Details Method and apparatus for determining the thickness of bone... Method and apparatus for determining the thickness of bone...

A - Human Necessities

61

B

A61B 5/107 (2006.01) A61B 5/103 (2006.01) A61B 8/08 (2006.01)

Patent

CA 2220361

The thickness of bones of the skull is determined in vivo employing ultrasonic waves which are transmitted into the bone; reflected echoes of the transmitted waves are converted into electrical signals and the signals are windowed to identify a zone embracing the bone thickness; a power spectrum is developed of each electrical signal of the windowed zone; the power spectrum is differentiated to provide a plot of frequency and amplitude and the distance between adjacent peaks of the wave plot is measured from which the bone thickness can be computed.

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