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Analysis of 3D bone ingrowth into polymer scaffolds via micro-computed tomography imaging

Paper ID Volume ID Publish Year Pages File Format Full-Text
11591 748 2004 8 PDF Available
Title
Analysis of 3D bone ingrowth into polymer scaffolds via micro-computed tomography imaging
Abstract

This paper illustrates the utility of micro-computed tomography (micro-CT) to study the process of tissue engineered bone growth. A micro-CT facility for imaging and visualising biomaterials in three dimensions (3D) is described. The facility is capable of acquiring 3D images made up of 20003 voxels on specimens up to 60 mm in extent with resolutions down to 2 μm. This allows the 3D structure of tissue engineered materials to be imaged across three orders of magnitude of detail. The capabilities of micro-CT are demonstrated by imaging the Haversian network within human femoral cortical bone (distal diaphysis) and bone ingrowth into a porous scaffold at varying resolutions. Phase identification combined with 3D visualisation enables one to observe the complex topology of the canalicular system of the cortical bone. Imaging of the tissue engineered bone at a scale of 1 cm and resolutions of 10 μm allows visualisation of the complex ingrowth of bone into the polymer scaffold. Further imaging at 2 μm resolution allows observation of bone ultra-structure. These observations illustrate the benefits of tomography over traditional techniques for the characterisation of bone morphology and interconnectivity and performs a complimentary role to current histomorphometric techniques.

Keywords
Image analysis; Scaffold; Bone tissue engineering; Micro-structure; X-ray micro-computed tomography
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Analysis of 3D bone ingrowth into polymer scaffolds via micro-computed tomography imaging
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Publisher
Database: Elsevier - ScienceDirect
Journal: Biomaterials - Volume 25, Issue 20, September 2004, Pages 4947–4954
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us