| 摘要 |
PROBLEM TO BE SOLVED: To provide a bone evaluating apparatus which evaluates the inner structure of the bone with a simple configuration. SOLUTION: The bone 30 is scanned by an ultrasonic beam 50 to acquire a distribution of property values 52. The property values are, for example, an attenuation value of an ultrasonic wave. The distribution of property values 52 reflects the distribution of bone beams in the bone 30 and generally has an M shape. By analyzing the shape of the distribution, the distribution of the bone beams within the bone 30 is estimated and the mechanical structure of the bone is evaluated. In the method, X rays can substitute for ultrasonic waves. Normalization operation using the bone thickness can also be applied to the method. COPYRIGHT: (C)2007,JPO&INPIT
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