MRI Scanner for Functional Brain Imaging

描述（由申请人提供）：在此申请中，我们申请资金购买3.0 T MRI扫描仪，用于大脑功能成像。该扫描仪将在密歇根大学的功能磁共振成像实验室纯粹用于研究目的。拟议的扫描仪将取代目前使用率很高的系统，该系统现已过时，难以修理。新系统包括最先进的能力，将服务于 作为密歇根大学功能性磁共振成像（fMRI）研究的支柱。新系统功能的亮点包括32个并行成像通道和8个并行传输通道。新系统还具有显著改进的实时成像和数据处理能力，并在梯度占空比以及系统稳定性和均匀性方面提高了性能。新的扫描仪的改进梯度性能将允许在更短的时间内更高的分辨率成像。新系统的更大更短的孔也将显著有利于受试者的舒适度，并将有助于在扫描仪的孔内使用额外的刺激和监测设备。并行激励能力将允许常规使用的方法来校正功能磁共振成像中的信号丢失人工。该系统将用于21个项目，涉及功能性MRI技术开发以及基础和转化神经科学。

DESCRIPTION (provided by applicant): In this application, we request funds to purchase a 3.0 T MRI scanner for functional imaging of the brain. The scanner will be used purely for research purposes at the University of Michigan's Functional MRI Laboratory. The proposed scanner will serve as a replacement for the current, heavily used system, which is now out of date and difficult to repair. The new system comprises state-of-the-art capabilities and will serve as the backbone of functional MRI (fMRI) research at the University of Michigan. The highlights of the new system's capabilities include 32 channels for parallel imaging and eight channels for parallel transmission. The new system also has significantly improved capabilities for real-time imaging and data processing, and improved performance in terms of gradient duty cycle as well as system stability and homogeneity. The new scanner's improved gradient performance will permit higher resolution imaging in a shorter period of time. The new system's larger and shorter bore will also be significantly beneficial for subject comfort, and will facilitate the use of additional stimulation and monitoring equipment inside the bore of the scanner. Parallel excitation capabilities will allow for routine use of methods for correcting for signal loss artifats in fMRI. The proposed system will be used by 21 projects concerned with functional MRI technology development as well as basic and translational neuroscience.