Bone evaluation method

A method for evaluating a calcaneus comprising the steps of:

• (a) irradiating the calcaneus substantially perpendicularly against the principle trabeculae of the calcaneus with radiation to obtain a density pattern;
• (b) calculating the area (.SIGMA.GS) of the density pattern;
• (c) evaluating the degree of the bone atrophy by using the area (.SIGMA.GS);
• (d) transforming the density pattern by Fourier transformation to obtain a power spectrum;
• and
• (e) evaluating the trabeculae of the calcaneus based on the power spectrum.

A method for evaluating a calcaneus comprising the steps of:

• (a) irradiating the calcaneus substantially perpendicularly against the principle trabeculae of the calcaneus with radiation to obtain a density pattern;
• (b) measuring the bone width (D);
• (c) calculating the area (.SIGMA.GS) of the density pattern corresponding to the bone width (D);
• (d) evaluating the degree of the bone atrophy by using the value (.SIGMA.GS/D) obtained by dividing the area (.SIGMA.GS) by the bone width (D) of the calcaneus;
• (e) transforming the density pattern by Fourier transformation to obtain a power spectrum;
• and
• (f) evaluating the trabeculae of the calcaneus based on the power spectrum.

A method for evaluating a calcaneus comprising the steps of:

• (a) irradiating the calcaneus substantially perpendicularly against the principle trabeculae of the calcaneus with radiation to obtain a density pattern;
• (b) measuring the bone width (D);
• (c) calculating the area (.SIGMA.GS) of the density pattern corresponding to the bone width (D);
• (d) evaluating the degree of the bone atrophy by using the area (.SIGMA.GS/D) and the value (.SIGMA.GS/D) obtained by dividing the area (.SIGMA.GS) by the bone width (D) of the calcaneus;
• (e) transforming the density pattern by Fourier transformation to obtain a power spectrum, and
• (f) evaluating the trabeculae of the calcaneus based on the power spectrum.