US-Egypt Cooperative Research: Three-Dimensional Deformable Modeling of the Spine.

该奖项旨在支持爱荷华州爱荷华市爱荷华大学机械工程助理教授Karim Abdel-Malek博士和埃及开罗美国大学副教授Ahmed Sameh Mohamed博士的合作项目。他们计划利用现有的数据和医学图像来开发一种新的脊柱手术模拟方法，包括建立脊柱运动的体积模型。物理模型是基于关节身体的生物力学，它大致将脊柱的形状与与其运动相关的力和扭矩联系在一起。运动的实时计算是可能的，这是由于处理了由建议的铰接式有限元方法(AFEM)导出的基本运动。AFEM是在保持有限元方法固有的准确性的同时，以高效的方式(在或接近实时)对组织和刚体运动进行建模的综合努力。由此产生的可变形模型将使研究人员、外科医生和从业者能够更好地模拟手术干预并更好地可视化复杂的脊柱解剖，并且是实现虚拟现实力反馈(触觉)感觉的第一步。范围：美国研究员Abdel-Malek博士和埃及合作者Mohamed博士在这项研究的特定方面拥有丰富的经验，即在可变形物体和刚体的力学以及计算机技术方面。这一话题既重要又及时，预计将对美国和埃及有利。预计爱荷华大学的一名美国研究生将参与这项研究，从而获得国际经验。这一建议符合INT支持在共同感兴趣的领域进行合作研究的目标。该项目得到了美国-埃及联合基金计划的支持，该计划为两国的科学家和工程师提供资助，以开展这些合作活动。

0001563Abdel-MalekDescription: This award is to support a collaborative project by Dr. Karim Abdel-Malek, Assistant Professor of Mechanical Engineering, University of Iowa, Iowa City, Iowa, and Dr. Ahmed Sameh Mohamed, Associate Professor, American University of Cairo, Cairo, Egypt. They plan to utilize existing data and medical images to develop a new method for spinal surgery simulation, including building a volumetric model of spinal movements. The physical model is based on the biomechanics of articulated bodies that approximately links the shape of the spine and the forces and torques associated with its movements. A real-time computation of the motion is possible due to the processing of elementary movements derived from a proposed Articulated Finite Element Method (AFEM). AFEM is an integrated effort at modeling tissue and motion of rigid bodies in an efficient manner (at or near real-time) while maintaining the accuracy inherent in finite element methods. The resulting deformable model will enable researchers, surgeons, and practitioners to better simulate surgical interventions and better visualize intricate spine anatomy, and is a first step towards achieving virtual reality force-feedback (haptic) sensation.Scope: The US investigator, Dr. Abdel-Malek and the Egyptian collaborator, Dr. Mohamed have, extensive experience in the specific aspects of this research, namely in mechanics of deformable bodies and rigid bodies, and in computer techniques. The topic is important and timely and is expected to be of benefit to the US and Egypt. A US graduate student at the University of Iowa is expected to participate in the research, thus gaining international experience. This proposal meets the INT objective of supporting collaborative research in areas of mutual interest. This project is being supported under the US-Egypt Joint Fund Program, which provides grants to scientists and engineers in both countries to carry out these cooperative activities.