Tb. N with Bone J

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Mahmoudi Sidi Ahmed

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Apr 14, 2015, 10:15:58 AM4/14/15
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Dear BoneJ users and developpers,

I'm actually working with Bone for computing the trabecular number Tb.N. However, with BoneJ, I obtain only Tb. th and Tb. Sp. 

Do you have any idea, on calculating Tb. N from these values ?

Best regards,

Sidi,

michae...@gmail.com

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Apr 15, 2015, 2:55:03 AM4/15/15
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Conn.D is better than Tb.N, because Tb.N makes some assumptions about the underlying geometry which may or may not be correct. Tb.N was developed to estimate trabeculae in thin sections, where the 3D information was not directly available. If you have 3D data, use Conn.D from Connectivity which counts topological holes, which corresponds directly to the number of trabculae. But, be careful that you have eliminated noise from the surface of your bone image.

Otherwise, I believe Tb.N is a simple derived value with a formula that you can look up and calculate (I don't have it to hand).

Michael
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