TRANSCRANIAL DOPPLER SIMULATOR FOR TRAINING AND ASSESSMENT

用于训练和评估的经颅多普勒模拟器

• 批准号: 9407746
• 负责人: DANIEL F LEOTTA
• 金额: $ 20.29万
• 依托单位: SHEEHAN MEDICAL, LLC
• 依托单位国家: 美国
• 财政年份: 2017
• 资助国家: 美国
• 起止时间: 2017-08-23 至 2018-08-22
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/9407746
• 关键词: Accreditation; Acoustics; Address; American; Anatomy; Angiography; Anterior; Blood Flow Velocity; Blood Vessels; Blood flow; Brain Death; Brain hemorrhage; Cause of Death; Cerebral Ischemia; Cerebrovascular system; Circle of Willis; Clinical; Color; Competence; Complex; Computer Simulation; Custom; Data Set; Deformity; Detection; Diagnosis; Diagnostic Procedure; Diagnostic tests; Dimensions; Distal; Doppler Ultrasound; Environment; Faculty; Grant; Gray unit of radiation dose; Health Benefit; Healthcare; Image; Internal carotid artery structure; Laboratories; Left; Libraries; Link; Manikins; Measures; Medical; Modeling; Monitor; Operative Surgical Procedures; Pathology; Patients; Performance; Phase; Procedures; Professional Competence; Provider; Research; Scanning; Shunt Device; Sickle Cell Anemia; Stroke; Structure of posterior cerebral artery; Structure of posterior communicating artery; Subarachnoid Hemorrhage; System; Technology; Testing; Time; Training; Transducers; Ultrasonography; Universities; Validation; Variant; Washington; X-Ray Computed Tomography; base; bone; cerebral artery; cerebrovascular; cranium; efficacy testing; evidence base; experience; improved; interest; non-invasive monitor; patient population; prototype; reconstruction; renal artery; simulation; skills; three-dimensional modeling; two-dimensional; vascular sonography

We aim to develop a transcranial Doppler (TCD) ultrasound simulator on a physical mannequin for realistic medical training and professional competence testing. The Specific Aims of the project are: 1. Develop a prototype TCD simulator. The anatomy of the cerebrovascular system (CVS) will be reconstructed in three dimensional (3D) from a patient’s computed tomography angiogram (CTA). The blood flow velocity at points within the CVS will be defined using computational flow modeling and used to generate the Doppler spectral waveform simulation for the TCD. 2. Develop a prototype transcranial color Doppler simulator by generating 2D B- mode ultrasound images from the CTA. Color Doppler images will be generated in real time from the flow model as in our vascular Doppler simulator. 3. Verify the accuracy of the simulation by comparing blood flow velocity measured from the simulator waveforms with the true velocities in the 3D models. We will verify the clinical realism of the simulation by comparing spectral Doppler waveforms measured on the simulator with patient Doppler spectral waveforms. This research will benefit health care by expanding patient access to TCD, a recommended diagnostic procedure, by helping to increase the number of providers trained to perform TCD. Wider use of evidence based applications of TCD will help avoid invasive and more expensive alternative diagnostic tests. This research is applicable both to underserved patients – those with sickle cell disease -- and to large patient populations because stroke is the fifth leading cause of death for Americans and TCD has critical applications in the management of ischemic as well as hemorrhagic strokes.

我们旨在在物理上开发thrancranial多普勒（TCD）超声模拟器 进行现实的医学培训和专业能力测试的模特。这 该项目的具体目标是： 1。开发原型TCD模拟器。脑血管系统的解剖结构 （CVS）将从患者计算的三维（3D）中重建 断层扫描血管造影（CTA）。 CVS内点的血流速度将 使用计算流建模定义，并用于生成多普勒 TCD的光谱波形模拟。 2。通过生成2D b-开发原型trancranial颜色多普勒模拟器 来自CTA的模式超声图像。颜色多普勒图像将在 与我们的血管多普勒模拟器中的流程模型实时。 3。通过比较测量的血流速度来验证模拟的准确性 从3D模型中具有真实速度的模拟器波形。我们将验证 通过比较光谱多普勒波形来模拟的临床现实 用患者多普勒光谱波形在模拟器上测量。 这项研究将通过扩大患者进入TCD的访问来使医疗保健受益。 推荐的诊断程序，通过帮助增加提供商的数量 经过训练可以执行TCD。更广泛使用基于证据的TCD应用将有助于 避免侵入性和更昂贵的替代诊断测试。这项研究是 两者都适用于服务不足的患者 - 患有镰状细胞疾病的患者以及大型患者 患者人口是因为中风是美国人和 TCD在缺血和出血的管理中有关键的应用 中风。