An Analysis by Synthesis Approach for Automatic Vertebral Shape Identification in Clinical QCT
An Analysis by Synthesis Approach for Automatic Vertebral Shape Identification in Clinical QCT
复制标题
临床QCT椎体形状自动识别的综合方法分析
DOI:
10.1007/978-3-030-12939-2_6
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发表时间:
2019
期刊:
影响因子:
--
通讯作者:
R. Koch
中科院分区:
文献类型:
--
作者:
S. Reinhold;T. Damm;L. Huber;R. Andresen;R. Barkmann;C.-C. Glüer;R. Koch
Quantitative computed tomography (QCT) is a widely used tool for osteoporosis diagnosis and monitoring. The assessment of cortical markers like cortical bone mineral density (BMD) and thickness is a demanding task, mainly because of the limited spatial resolution of QCT. We propose a direct model based method to automatically identify the surface through the center of the cortex of human vertebra. We develop a statistical bone model and analyze its probability distribution after the imaging process. Using an as-rigid-as-possible deformation we find the cortical surface that maximizes the likelihood of our model given the input volume. Using the European Spine Phantom (ESP) and a high resolution \mu CT scan of a cadaveric vertebra, we show that the proposed method is able to accurately identify the real center of cortex ex-vivo. To demonstrate the in-vivo applicability of our method we use manually obtained surfaces for comparison.
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DOI:
10.1007/978-3-319-45886-1_12
发表时间:
2016-09
期刊:
--
影响因子:
--
作者:
Stefan Reinhold;Andreas Jordt;R. Koch
通讯作者:
Stefan Reinhold;Andreas Jordt;R. Koch
影响因子:
2.6
作者:
M. Haidekker;R. Andresen;C. Evertsz;D. Banzer;H. Peitgen
通讯作者:
H. Peitgen
DOI:
10.1115/1.4031572
发表时间:
2015-11-01
影响因子:
1.7
作者:
Giambini, Hugo;Dragomir-Daescu, Dan;Nassr, Ahmad
通讯作者:
Nassr, Ahmad
影响因子:
1.4
作者:
M. Smith;P. Dunkow;D. Lang
通讯作者:
D. Lang
影响因子:
4
作者:
Haidekker, MA;Andresen, R;Werner, HJ
通讯作者:
Werner, HJ