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.

摘要 来自RR&D肢体损失预防和修复工程中心的九名调查人员要求 资金用于购买新的双平面透视系统。该系统将支持各种项目， 致力于中心的核心使命，即改善退伍军人的生活质量和功能状态， 有下肢截肢风险的人，以及经历过下肢截肢的退伍军人和服务人员。 四肢截肢双平面透视系统由一对安装在 连接到多个独立的调整台架上。每个荧光镜都包括一个X射线发生器， 产生并发射X射线辐射，以及图像增强器（II），其收集X射线并将它们转换成 可见光每个II后面都安装了一个高速摄像机，用于捕捉可见光图像 以高采集速率（高达1000帧/秒）出现在II上。X射线发生器和II是 安装在落地式支架上，该支架提供X-轴位置的电机驱动垂直调节， 射线和II。系统接口通过摄像机实现X射线采集，并提供 与外部硬件的触发能力。所要求的双平面透视系统是一项重大升级， 我们目前的系统是在2007-08年度购买的，使用的技术已经过时。如上所述， 双平面系统的三个主要组件：1）X射线发生器和II，2）支架或 龙门架; 3）高速摄像机。每个子系统都将被替换。双平面 透视系统将支持该中心研究组合中的许多项目： ·足部矫形器的定量处方：一项对患足矫形器的患者的运动功能的剂量反应研究 使用双平面荧光镜检查的足踝疼痛。剂量的双平面透视评估 将进行足部运动学对不同程度的后足定位的响应。 ·跷底鞋和踝足矫形器是否能减轻踝关节疼痛并提高踝关节的灵活性 骨关节炎患者？双平面透视评估摇杆对足部运动的影响 底鞋和踝足矫形器将进行。 ·步态期间的残肢骨骼运动。残肢骨的双平面透视评估 将进行运动学分析。 ·外侧楔形鞋垫的生物力学。双平面X线透视评估足运动学 将进行侧向楔形鞋垫的响应。 ·减少糖尿病足畸形的内应力。足部双平面透视评估 运动学将为模型验证提供足部和踝部骨骼运动的高分辨率图像。 ·改善错位关节炎踝关节的检测、分类和治疗。双平面 将对踝关节骨关节炎受试者的足部运动学进行荧光透视评估。 ·映射足部和踝部的软组织间隙并基于位置特异性误差评估 主题特征。双平面系统将用于确定光学处的软组织伪影 标记位置，以建立错误映射数据库。 ·使用生物力学和解剖学比较拇趾僵硬的手术治疗 真实的脚模型。双平面系统将用于收集所用患者的确认数据 建立HR模型。