Efficient patient modeling for visuo-haptic VR simulation using a generic patient atlas
Efficient patient modeling for visuo-haptic VR simulation using a generic patient atlas
复制标题
使用通用患者图谱进行视觉触觉 VR 模拟的高效患者建模
DOI:
10.1016/j.cmpb.2016.04.017
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发表时间:
2016
影响因子:
6.1
通讯作者:
H. Handels.
中科院分区:
文献类型:
--
作者:
Mastmeyer;D. Fortmeier;H. Handels.
Background and ObjectiveThis work presents a new time-saving virtual patient modeling system by way of example for an existing visuo-haptic training and planning virtual reality (VR) system for percutaneous transhepatic cholangio-drainage (PTCD).MethodsOur modeling process is based on a generic patient atlas to start with. It is defined by organ-specific optimized models, method modules and parameters, i.e. mainly individual segmentation masks, transfer functions to fill the gaps between the masks and intensity image data. In this contribution, we show how generic patient atlases can be generalized to new patient data. The methodology consists of patient-specific, locally-adaptive transfer functions and dedicated modeling methods such as multi-atlas segmentation, vessel filtering and spline-modeling.ResultsOur full image volume segmentation algorithm yields median DICE coefficients of 0.98, 0.93, 0.82, 0.74, 0.51 and 0.48 regarding soft-tissue, liver, bone, skin, blood and bile vessels for ten test patients and three selected reference patients. Compared to standard slice-wise manual contouring time saving is remarkable.ConclusionsOur segmentation process shows out efficiency and robustness for upper abdominal puncture simulation systems. This marks a significant step toward establishing patient-specific training and hands-on planning systems in a clinical environment.
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影响因子:
3
作者:
Pierre;F. Vidal;C. Hunt;F. Bello;N. John;S. Johnson;D. Gould
通讯作者:
D. Gould
DOI:
--
发表时间:
2012
期刊:
Medicine Meets Virtual Reality
影响因子:
--
作者:
André Mastmeyer;D. Fortmeier;H. Handels
通讯作者:
H. Handels
DOI:
--
发表时间:
1997
期刊:
影响因子:
--
作者:
Lin Liwu
通讯作者:
Lin Liwu
DOI:
--
发表时间:
2002
期刊:
影响因子:
--
作者:
F. Dammann
通讯作者:
F. Dammann
影响因子:
2.6
作者:
W. Willaert;R. Aggarwal;I. Herzeele;N. Cheshire;F. Vermassen
通讯作者:
F. Vermassen