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KMID : 1151820220160010053
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Journal of the Korean Society of Radiology
2022 Volume.16 No. 1 p.53 ~ p.59
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Volumetric Bone Mineral Density Measurement: for Surgery Specific Bone Volumes
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Lee Yeon-Soo
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Abstract
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DEXA, as the standard areal bone mineral density (aBMD) measurement method, often shows an insuficient correlation between aBMDs of the measured bones and referring bones and is inaccurate due to the mass effect. In contrast, quantitative computer tomography (QCT), as a volumetric BMD (vBMD) measurement method, is being advanced so that it uses less radiation before, owing to improved CT device and computer imaging technology. Because dual-energy CTs can modulate the image signals showing tumor or specific chemicals as well as the ability to measure vBMD, they are expanding their application. For pre-checking vBMD of surgeon-specific bone volume at implantation candidate sites, a finite element creation-based local vBMD measurement technique was developed. The local vBMD measurement function for surgeon-specific shape volumes will be added to clinical imaging systems.
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KEYWORD
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Areal bone mineral density(aBMD), DEXA, Volumetric bone mineral density(vBMD), QCT, Local
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