Name
Title | ||
|---|---|---|
A graphics processing unit accelerated motion correction algorithm and modular system for real-time fMRI. |
Abstract | ||
|---|---|---|
Real-time functional magnetic resonance imaging (rt-fMRI) has recently gained interest as a possible means to facilitate the learning of certain behaviors. However, rt-fMRI is limited by processing speed and available software, and continued development is needed for rt-fMRI to progress further and become feasible for clinical use. In this work, we present an open-source rt-fMRI system for biofeedback powered by a novel Graphics Processing Unit (GPU) accelerated motion correction strategy as part of the BioImage Suite project ( www.bioimagesuite.org ). Our system contributes to the development of rt-fMRI by presenting a motion correction algorithm that provides an estimate of motion with essentially no processing delay as well as a modular rt-fMRI system design. Using empirical data from rt-fMRI scans, we assessed the quality of motion correction in this new system. The present algorithm performed comparably to standard (non real-time) offline methods and outperformed other real-time methods based on zero order interpolation of motion parameters. The modular approach to the rt-fMRI system allows the system to be flexible to the experiment and feedback design, a valuable feature for many applications. We illustrate the flexibility of the system by describing several of our ongoing studies. Our hope is that continuing development of open-source rt-fMRI algorithms and software will make this new technology more accessible and adaptable, and will thereby accelerate its application in the clinical and cognitive neurosciences. |
Year | DOI | Venue |
|---|---|---|
2013 | 10.1007/s12021-013-9176-3 | Neuroinformatics |
Keywords | Field | DocType |
motion,algorithms,computer graphics,magnetic resonance imaging,oxygen,brain mapping | Computer vision,Computer science,Interpolation,Algorithm,Systems design,Software,Artificial intelligence,Real-time computer graphics,Modular design,Graphics processing unit,Computer graphics,Processing delay | Journal |
Volume | Issue | ISSN |
11 | 3 | 1559-0089 |
Citations | PageRank | References |
3 | 0.47 | 13 |
Authors | ||
6 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Dustin Scheinost | 1 | 287 | 22.17 |
| Michelle Hampson | 2 | 172 | 12.32 |
| Maolin Qiu | 3 | 107 | 9.85 |
| Jitendra Bhawnani | 4 | 14 | 1.28 |
| R Todd Constable | 5 | 848 | 77.34 |
| Xenophon Papademetris | 6 | 516 | 48.77 |