ShEEP Request for CurveBeam pedCAT Foot and Ankle Scanner

摘要 来自RR&D预防和假肢工程中心的九名研究人员要求 购买CurveBeam PedCAT足部和脚踝扫描仪的资金。该扫描仪将用于一系列研究 旨在改善面临截肢危险的退伍军人和退伍军人的生活质量和服务的项目 接受过下肢截肢手术的成员。 与我们目前的方法相比，PedCAT扫描仪具有许多优势，可以获得 足部和脚踝或残肢，需要使用常规的全身计算机断层扫描(CT) 扫描仪。通过对足部和脚踝的负重扫描，可以发现影响这些关节的关键临床症状， 在退伍军人中流行，更容易诊断。PedCAT提供更高分辨率的图像 而且还显著减少了辐射剂量-相当于仅几个小时的背景辐射-这 将减少研究参与者的负担，更容易招募，并能够开展更广泛的活动 使用我们的双平面透视系统的分析方案，这需要扫描感兴趣的解剖结构 分析底层骨骼的运动。此外，接触到这台设备将减少我们对 在临床成像服务方面，这在过去导致了一些后勤问题，如日程安排和 取消，导致更高效的研究工作流程，使调查人员和研究人员都受益 参与者。该扫描仪将支持该中心研究项目组合中的多个项目： 足底矫形器定量处方的运动学剂量效应研究 双平面透视下的足部和脚踝疼痛。扫描仪将被用来对脚和脚踝进行成像 骨头。这些数据是通过双平面透视分析骨骼运动学所必需的，而 受试者穿着不同的鞋垫设计行走。 摇摆鞋和脚踝矫形器能减轻脚踝疼痛并改善其灵活性吗？ 骨性关节炎患者？扫描仪将对脚和脚踝骨骼进行成像，这些数据随后将 用于在不同干预下通过双平面透视分析这些骨骼的运动学。 在步态中的残馀肢体骨骼运动。扫描仪将对残肢中的骨骼进行成像。 这些数据是通过双平面分析这些骨骼相对于假肢窝的运动学所必需的 透视检查。 楔形鞋垫的生物力学研究。扫描仪将用于对足部和脚踝骨骼进行成像 用于后续双平面透视研究不同鞋垫设计的效果。 减轻糖尿病足畸形患者的内部压力。扫描仪将被用来获得高分辨率 计算模型组件的脚部和脚踝骨骼几何体的图像。 改进了关节错位的检测、分类和治疗。扫描仪将 用于对足部和脚踝骨骼进行成像，以进行后续的双平面透视分析。 基于的足踝软组织伪影定位及定位误差评估 学科特点。扫描仪将对脚部和脚踝骨骼进行成像，以进行后续的双平面透视 分析。 应用生物力学和解剖学方法对拇趾侧裂手术治疗的比较 真实的脚部模型。足部和脚踝CT扫描将使用PedCAT进行，以确定 脚部和脚踝骨骼的几何体。这些数据是制作拇指3D打印复制品所必需的 强直足测试各种外科治疗方法。

ABSTRACT Nine Investigators from the RR&D Center for Limb Loss Prevention and Prosthetic Engineering are requesting funds to acquire a CurveBeam pedCAT foot and ankle scanner. The scanner will be used in a series of research projects aimed at improving the quality of life of Veterans at risk of amputation and Veterans and service members who have undergone lower extremity amputation. The pedCAT scanner has a number of advantages over our current approach to obtaining imaging data of the foot and ankle or residual limb, which requires the use of a conventional, full body computed tomography (CT) scanner. Weight-bearing scans of the foot and ankle allow key clinical conditions that affect these joints and are prevalent in the veteran population to be more readily diagnosed. The pedCAT provides higher resolution images and also a significant reduction in radiation dose – equivalent to just a few hours of background radiation – which will result in reduced research participant burden, easier recruitment, and the ability to carry out more extensive analysis protocols using our biplane fluoroscopy system, which requires scans of the anatomy of interest to analyze the movement of the underlying bones. Furthermore, access to this equipment will reduce our reliance on clinical imaging services, which in the past has led to a number of logistical issues in terms of scheduling and cancellations, resulting in a more efficient research workflow, benefiting both investigators and research participants. The scanner will support a number of projects that span the Center’s research portfolio:  Quantitative Prescription of Foot Orthoses: A Dose-Response Study of Kinematics in Patients with Foot and Ankle Pain using Biplane Fluoroscopy. The scanner will be used to image of the foot and ankle bones. These data are required to analyze the kinematics of the bones via biplane fluoroscopy while the subjects are walking with different insole designs.  Do Rocker Bottom Shoes and Ankle-Foot Orthoses Reduce Pain and Improve Mobility for Ankle Osteoarthritis Patients? The scanner will image the foot and ankle bones, and these data will subsequently be used to analyze the kinematics of these bones via biplane fluoroscopy for different interventions.  Residual Limb Skeletal Movement During gait. The scanner will image the bones in the residual limb. These data are required to analyze the kinematics of these bones relative to the prosthetic socket via biplane fluoroscopy.  The Biomechanics of Lateral Wedge Insoles. The scanner will be used to image the foot and ankle bones for subsequent biplane fluoroscopy studies of the effects of different insole designs.  Reducing Internal Stresses in Deformed Diabetic Feet. The scanner will be used to obtain high resolution images of the foot and ankle bone geometry for computational model components.  Improving the Detection, Classification and Treatment of Misaligned Arthritic Ankles. The scanner will be used to image the foot and ankle bones for subsequent biplane fluoroscopy analysis.  Mapping The Soft Tissue Artifact of the Foot and Ankle and Evaluating Site Specific Errors based on Subject Characteristics. The scanner will image foot and ankle bones for subsequent biplane fluoroscopy analysis.  Comparing Surgical Treatments for Hallux Rigidus Using a Biomechanically and Anatomically Realistic Foot Model. Foot and ankle CT scans will be carried out using the pedCAT to determine the geometry of foot and ankle bones. These data are required to produce 3D printed replications of the hallux rigidus feet to test various surgical treatments.