ShEEP-IC: Request for Biplane Fluoroscopy System

ShEEP-IC：双平面透视系统请求

• 批准号: 9363040
• 负责人: William R. Ledoux
• 金额: --
• 依托单位: VA PUGET SOUND HEALTHCARE SYSTEM
• 依托单位国家: 美国
• 财政年份: 2017
• 资助国家: 美国
• 起止时间: 2017-01-01 至 2017-09-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/9363040
• 关键词: Address; Aluminum; Amputation; Amputees; Anatomy; Ankle; Area; Arthritis; Back; Biomechanics; Body part; Caliber; Characteristics; Classification; Custom; Data; Data Collection; Databases; Degenerative polyarthritis; Detection; Devices; Diabetic Foot; Dose; Engineering; Flatfoot; Floor; Fluoroscope; Fluoroscopy; Foot Deformities; Frequencies; Funding; Gait; Hallux Rigidus; Image; Joints; Lateral; Left; Limb structure; Location; Lower Extremity; Measurement; Memory; Mission; Modeling; Morphologic artifacts; Motion; Motor; Operative Surgical Procedures; Optics; Orthotic Devices; Pain; Participant; Patients; Physiologic pulse; Positioning Attribute; Prevention; Prosthesis; Quality of life; Radiation Dosage; Research; Research Personnel; Resolution; Risk; Roentgen Rays; Services; Sheep; Shoes; Site; Speed; Stress; System; Tarsal Bones; Technology; Testing; Time; Toes; Validation; Veterans; Visible Radiation; Vision research; Walking; arm; base; design; flexibility; foot; foot bone; functional status; high resolution imaging; imaging system; improved; improved mobility; kinematics; limb bone; pathomechanics; patient population; research study; residual limb; response; service member; skeletal movement; soft tissue

ABSTRACT Nine Investigators from the RR&D Center for Limb Loss Prevention and Prosthetic Engineering are requesting funds to acquire a new biplane fluoroscopy system. This system will support a variety of projects that are working towards the Center's core mission of improving the quality of life and functional status of both veterans who are at risk for lower extremity amputation, and veterans and service members who have undergone lower extremity amputation. The biplane fluoroscopy system consists of a pair of fluoroscope components mounted to a number of free-standing adjustment gantries. Each fluoroscope is comprised of an X-ray generator, which produces and emits X-ray radiation, and an image intensifier (II) which collects the X-rays and converts them to visible light. Mounted behind each II is a high-speed video camera, which captures the visible-light images appearing on the II at a high acquisition rate (up to 1000 frames/sec). The X-ray generator and II's are mounted to a floor-mounted stand which provides for motor-driven vertical adjustment of the position of the X- rays and II's. A system interface synchronizes the X-ray acquisition with the video cameras, and provides triggering capabilities with external hardware. The requested biplane fluoroscopy system is a major upgrade to our current system which was purchased in 2007-08 and uses outdated technology. As noted above, there are three major components to the biplane system: 1) the X-ray generators and IIs, 2) the support stands or gantries, and 3) the high speed video cameras. Each of these subsystems will be replaced. The biplane fluoroscopy system 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. A biplane fluoroscopy assessment of the dose response of foot kinematics to varying degrees of hindfoot posting will be conducted. · Do Rocker Bottom Shoes and Ankle-Foot Orthoses Reduce Pain and Improve Mobility for Ankle Osteoarthritis Patients? A biplane fluoroscopy assessment of foot kinematics in response to rocker bottom shoes and ankle-foot orthoses will be conducted. · Residual Limb Skeletal Movement During gait. A biplane fluoroscopy assessment of residual limb bone kinematics will be conducted. · The Biomechanics of Lateral Wedge Insoles. A biplane fluoroscopy assessment of foot kinematics in response to lateral wedge insoles will be conducted. · Reducing Internal Stresses in Deformed Diabetic Feet. A biplane fluoroscopy assessment of foot kinematics will provide high resolution images of foot and ankle bone motion for model validation. · Improving the Detection, Classification and Treatment of Misaligned Arthritic Ankles. A biplane fluoroscopy assessment of foot kinematics of ankle osteoarthtitis subjects will be conducted. · Mapping The Soft Tissue Artifact of the Foot and Ankle and Evaluating Site Specific Errors based on Subject Characteristics. The biplane system will be used to determine soft tissue artifact at optical marker locations, in order to build error-mapping databases. · Comparing Surgical Treatments for Hallux Rigidus Using a Biomechanically and Anatomically Realistic Foot Model. The biplane system will be used to collect validation data on patients that were used to generate HR models.

抽象的 RR＆D肢体损失预防和假肢工程中心的九名调查员要求 资金以获取新的双翼飞机荧光镜系统。该系统将支持各种项目 朝着中心的核心使命努力，以改善两位退伍军人的生活质量和功能状况 他们有下肢截肢的风险，以及经历较低的退伍军人和服务成员 肢体截肢。双翼荧光镜系统由安装的一对荧光镜组件组成 进行许多独立的调整龙头。每个荧光镜都由X射线发生器组成，该发生器 产生并发射X射线辐射，以及图像增强器（II），该辐射（II）收集X射线并将其转换为 可见光。安装在每个II后面的是高速摄像机，该摄像机捕获了可见光的图像 以高采集率（最高1000帧/秒）出现在II上。 X射线发生器和II是 安装在地板上的支架上，可为X-的位置进行电动驱动的垂直调整 射线和II。系统接口将X射线采集与摄像机同步，并提供 使用外部硬件触发功能。请求的双翼荧光镜系统是对 我们当前的系统是在2007 - 08年购买的，并使用了过时的技术。如上所述，有 双翼系统的三个主要组成部分：1）X射线发生器和IIS，2）支撑架或 Gantries和3）高速摄像机。这些子系统中的每一个都将被替换。双翼飞机 荧光镜系统将支持许多跨越中心研究组合的项目： ·脚矫形器的定量处方：运动运动学的剂量反应研究 脚和脚踝疼痛使用双翼透射镜检查。剂量的双翼透视透视评估 将进行脚部运动学对不同程度的后脚张贴的响应。 ·摇杆底鞋和脚踝矫形器减轻疼痛并改善脚踝的活动性 骨关节炎患者？对摇杆的双翼荧光镜荧光镜评估 将进行底部鞋子和脚踝矫形器。 ·步态过程中残留的肢体骨骼运动。残留肢骨的双翼荧光镜评估 将进行运动学。 ·侧向楔形鞋垫的生物力学。双皮层荧光镜评估足部运动学 将对侧向楔形鞋垫做出反应。 ·减少变形糖尿病脚的内部应力。双皮透透射术评估脚 运动学将为模型验证提供高分辨率的脚和脚踝骨运动。 ·改善未对准的关节脚踝的检测，分类和治疗。双翼飞机 将对脚踝骨炎受试者的脚部运动学的荧光镜评估。 ·映射脚和脚踝的软组织伪像，并评估位点特定错误的基于误差 关于主题特征。双翼飞机系统将用于确定光学上的软组织伪像 标记位置，以构建错误映射数据库。 ·使用生物力学和解剖学上的手术治疗方法 逼真的脚模型。双翼飞机系统将用于收集有关使用的患者的验证数据 生成人力资源模型。