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预防和假肢工程中心的九名研究人员要求 用于购买新的双平面透视系统的资金。该系统将支持各种项目，这些项目 努力实现该中心的核心使命，即改善两名退伍军人的生活质量和功能状态 有截肢风险的退伍军人和服兵役人员 四肢截肢。双平面透视系统由一对安装的透视组件组成 连接到一些独立的调整机架。每个荧光镜由一个X射线发生器组成，它 产生和发射X射线辐射，以及图像增强器(II)，其收集X射线并将其转换为 可见光。安装在每个II后面的是一个高速摄像机，它捕捉可见光图像 以高采集速率(高达1000帧/秒)出现在II上。X光发生器和II是 安装在地板式支架上，用于电动垂直调整X- 射线和II的。系统接口使X射线采集与摄像机同步，并提供 与外部硬件的触发功能。所要求的双平面透视系统是对 我们目前的系统是在2007-08年购买的，使用的是过时的技术。如上所述，有以下几种 双面系统的三个主要部件：1)X射线发生器和IIs，2)支架或 机架，以及3)高速摄像机。这些子系统中的每个都将被更换。双翼飞机 荧光透视系统将支持该中心研究组合中的多个项目： ·足部矫形器的定量处方：运动学的剂量-反应研究 双平面透视下的足部和脚踝疼痛。双平面透视对剂量的评估 将进行脚部运动学对不同程度的后脚位置的响应。 ·摇臂底鞋和踝足矫形器是否可以减轻疼痛并改善脚踝的灵活性 骨性关节炎患者？双平面透视评价摇臂对足部运动学的影响 将进行鞋底和脚踝矫形器。 ·步态过程中残存的肢体骨骼运动。四肢残骨的双平面透视评价 将进行运动学研究。 ·楔形鞋垫的生物力学。足底运动学的双平面透视评价 将进行横向楔形鞋垫的响应。 ·减少糖尿病足畸形患者的内部压力。足部双平面透视检查 运动学将为模型验证提供足部和脚踝骨骼运动的高分辨率图像。 ·改进错位关节炎脚踝的检测、分类和治疗。一架双翼飞机 将对踝关节骨性关节炎患者的足部运动学进行透视评估。 ·绘制足部和脚踝的软组织伪影并评估特定部位的误差 关于学科特点。双平面系统将用于确定光学检查中的软组织伪影 标记位置，以便建立错误映射数据库。 ·使用生物力学和解剖学方法比较拇趾侧裂的手术治疗 真实的脚部模型。双平面系统将用于收集使用过的患者的验证数据 以生成人力资源模型。