Evaluation of lobar biomechanics during respiration using image registration.

Evaluation of lobar biomechanics during respiration using image registration.
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DOI:
10.1007/978-3-642-04268-3_91
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发表时间:
2009
期刊:
LECTURE NOTES IN ARTIFICIAL INTELLIGENCE
影响因子:
--
通讯作者:
Reinhardt, Joseph M.
Reinhardt, Joseph M.
中科院分区:
其他
文献类型:
--
作者:
Ding, Kai;Yin, Youbing;Cao, Kunlin;Christensen, Gary E.;Lin, Ching-Long;Hoffman, Eric A.;Reinhardt, Joseph M.

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人的肺分为五个独立的部分,称为肺叶。肺叶裂将肺叶分开。据推测,在呼吸过程中,肺叶表面相互滑动。我们提出了一种方法来评估滑动运动的肺叶表面在呼吸过程中使用肺叶的质量保持非刚性图像配准。我们通过评估裂隙两侧的相对位移来测量肺叶滑动。结果表明,在肺叶滑动的幅度上有一个上-下梯度。我们比较了基于全肺的配准精度与使用血管分叉标志的逐叶配准精度。
The human lungs are divided into five independent compartments called lobes. The lobar fissures separate the lung lobes. It is hypothesized that the lobar surfaces slide against each other during respiration. We propose a method to evaluate the sliding motion of the lobar surfaces during respiration using lobe-by-lobe mass-preserving non-rigid image registration. We measure lobar sliding by evaluating the relative displacement on both sides of the fissure. The results show a superior-inferior gradient in the magnitude of lobar sliding. We compare whole-lung-based registration accuracy to lobe-by-lobe registration accuracy using vessel bifurcation landmarks.
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