Composite time-lapse computed tomography and micro finite element simulations: A new imaging approach for characterizing cement flows and mechanical benefits of vertebroplasty
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- 作者：Vincent A Stadelmann ; vincent.stadelmann@aofoundation.org" class="auth_mail" title="E-mail the corresponding author ; vincent.stadelmann@a3.epf" class="auth_mail" title="E-mail the corresponding author ; Ivan Zderic ivan.zderic@aofoundation.org" class="auth_mail" title="E-mail the corresponding author ; Annick Baur baur.annick@gmail.com" class="auth_mail" title="E-mail the corresponding author ; Cynthia Unholz cunholz@student.ethz.ch" class="auth_mail" title="E-mail the corresponding author ; Ursula Eberli ursula.eberli@aofoundation.org" class="auth_mail" title="E-mail the corresponding author ; Boyko Gueorguiev boyko.gueorguiev@aofoundation.org" class="auth_mail" title="E-mail the corresponding author
- 关键词：Micro computed tomography ; Computed tomography ; Time-lapse imaging ; Vertebroplasty ; Bone augmentation ; Finite-element method
- 刊名：Medical Engineering & Physics
- 出版年：2016
- 出版时间：February 2016
- 年：2016
- 卷：38
- 期：2
- 页码：97-107
- 全文大小：4587 K
文摘
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We propose a novel imaging approach to visualize cement flow within bone during
vertebroplasty at pseudo high-resolution.
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The method consist of combining microCT and time-lapsed clinical CT scan sequences.
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Image-based micro finite element modeling is used to compute the strain energy density
distribution at the different steps of injection.
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The method is tested on a small sample of intact and fractured cadaveric bones.