Name
Title | ||
|---|---|---|
Advanced three-dimensional tailored RF pulse design in volume selective parallel excitation. |
Abstract | ||
|---|---|---|
Volume selective excitation has a variety of uses in clinical magnetic resonance imaging, but can suffer from insufficient excitation accuracy and impractically long pulse duration in ultra-high field applications. Based on recently-developed parallel transmission techniques, an optimized 3D tailored radio-frequency RF (TRF) pulse, designed with a novel 3D adaptive trajectory, is proposed to improve and accelerate volume selective excitation. The trajectory is designed to be regular-shaped and adaptively stretched according to the size of a 3D k-space "trajectory container." The container is designed to hold most of the RF energy deposition responsible for the desired pattern in the excitation k-space in the use of the blurring patterns caused by the multichannel sensitivity maps. The proposed method can also be used to reduce both global and peak RF energy required during excitation. The feasibility of this method is confirmed by simulations of ultra-high field cases. |
Year | DOI | Venue |
|---|---|---|
2012 | 10.1109/TMI.2011.2178035 | IEEE Trans. Med. Imaging |
Keywords | Field | DocType |
three-dimensional (3d) adaptive trajectory,multichannel sensitivity maps,ultrahigh field applications,volume selective excitation,trajectory container,parallel transmission,lung tumor,multistage,parallel transmission techniques,biomedical mri,magnetic resonance imaging,spatial feature,abnormal lymph node,optimized 3d tailored radiofrequency rf pulse,3d k-space adaptive trajectory container,rf energy deposition,detection,three-dimensional (3d) tailored rf pulse,blurring patterns,volume selective parallel excitation,discriminative,three-dimensional tailored rf pulse design,medical image processing,radio frequency,three dimensional,magnetic resonance image,algorithms,trajectory,accuracy,computer simulation,radio waves,feasibility studies | Computer vision,Parallel communication,Optics,Excitation,Pulse (signal processing),Radio frequency,Pulse duration,Artificial intelligence,Nuclear magnetic resonance,Trajectory,Mathematics,Magnetic resonance imaging | Journal |
Volume | Issue | ISSN |
31 | 5 | 1558-254X |
Citations | PageRank | References |
0 | 0.34 | 0 |
Authors | ||
6 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Tingting Shao | 1 | 0 | 0.34 |
| Ling Xia | 2 | 27 | 11.36 |
| Guisheng Tao | 3 | 0 | 0.34 |
| Jieru Chi | 4 | 7 | 1.55 |
| Feng Liu | 5 | 82 | 19.52 |
| Stuart Crozier | 6 | 130 | 14.02 |