物理驱动的AI在计算MRI中的边缘计算:可行性研究
Yaşar Utku Alçalar1, Yu Cao1, Mehmet Akçakaya1
1College of Science and Engineering, University of Minnesota, Minneapolis, USA.
概括
物理驱动的AI MRI重建加速扫描,但产生大量数据. 这种新方法优化了使用8位定量化的边缘设备的AI,提高了效率而不损失质量,以获得更快,更高分辨率的成像.
科学领域:
- 医疗成像医学成像
- 人工智能的人工智能
- 边缘计算 边缘计算
背景情况:
- 物理驱动的AI (PD-AI) 加快了MRI扫描,使得分辨率更高.
- 高分辨率的MRI产生大量的数据,使传输,存储和处理变得紧张,特别是在功能性MRI中.
- 使用FPGA的边缘计算为近传感器PD-AI重建提供了解决方案,但需要硬件高效的模型.
研究的目的:
- 为基于FPGA的边缘计算优化了一种新的PD-AI计算型MRI方法.
- 通过8位复杂数据量化和消除FT/IFFT操作来提高硬件效率.
主要方法:
- 开发了一种针对FPGA边缘设备量身定制的PD-AI计算型MRI方法.
- 实现了8位复杂数据量化,用于模型优化.
- 消除了冗余的快速里埃转换 (FFT) 和反向FFT (IFFT) 操作.
主要成果:
- 与传统的PD-AI方法相比,实现了更好的计算效率.
- 保持了与现有的PD-AI技术可比的重建质量.
- 在重建质量和效率方面表现优于标准的临床MRI方法.
结论:
- 拟议的PD-AI方法可以在资源有限的边缘设备上实现高分辨率的MRI重建.
- 该战略解决了高分辨率MRI中的数据瓶,促进了现实世界的部署.
- 优化的PD-AI模型对于先进的医学成像中的高效边缘计算至关重要.
相关概念视频
Imaging Studies III: Computed Tomography
406
DefinitionComputed Tomography (CT) of the genitourinary (GU) tract is a non-invasive imaging modality that utilizes X-rays and computer processing to generate detailed cross-sectional images of the urinary system, encompassing the kidneys, ureters, bladder, and adjacent structures such as the adrenal glands.PurposeCT scans of the GU tract serve several diagnostic and therapeutic purposes, including:Diagnosis of Urinary Tract Diseases: Detects kidney stones, tumors, cysts, and congenital...
406
Computed Tomography
8.9K
Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
8.9K
Design Example: Traverse Angle Computations
344
Traverse angle computations are a critical component of surveying, used to compute the internal angles within a closed traverse. A traverse consists of a series of connected lines forming a closed loop, often used for land boundary delineation or mapping. Calculating the internal angles ensures accuracy in the traverse geometry and is essential for checking survey data integrity.The process begins with known azimuths and bearings of the traverse sides. Internal angles at each vertex are...
344
Area Computation by the Alternative Coordinate Method
663
The alternative coordinate method, also known as the Shoelace Formula, is a technique for determining the area of a traverse using Cartesian coordinates. This method relies on the sequential arrangement of x and y coordinates for each point of the shape, ensuring accuracy and ease of application.In this approach, each corner's x and y coordinates are listed as fractions, with the x-coordinate as the numerator and the y-coordinate as the denominator. These coordinates are arranged sequentially...
663
The Role of Ion Channels in Neuronal Computation
3.9K
A postsynaptic neuron usually receives numerous impulses from several other presynaptic neurons. The axon hillock of the postsynaptic neuron integrates all these signals and determines the likelihood of firing an action potential.
Sometimes a single EPSP is strong enough to induce an action potential in the postsynaptic neuron. However, multiple presynaptic inputs must often create EPSPs around the same time for the postsynaptic neuron to be sufficiently depolarized to fire an action potential....
Sometimes a single EPSP is strong enough to induce an action potential in the postsynaptic neuron. However, multiple presynaptic inputs must often create EPSPs around the same time for the postsynaptic neuron to be sufficiently depolarized to fire an action potential....
3.9K
Imaging Studies I: CT and MRI
921
Introduction: MRI and CT scans are crucial advancements in medical imaging techniques, playing a vital role in diagnosing conditions related to the gastrointestinal (GI) system. Each scan serves distinct purposes, targets specific areas, and requires unique nursing duties.
Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...
Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...
921


