
doi: 10.1002/mrm.23152
pmid: 22009706
AbstractThis communication describes radiofrequency pulses capable of performing spatially periodic excitation, inversion, and refocusing. The generation of such pulses either by multiplication of existing radiofrequency pulses by a Dirac comb function or by means of Fourier series expansion is described. Practical schemes for the implementation of such pulses are given, and strategies for optimizing the pulse profile at fixed pulse duration are outlined. The pulses are implemented using a spin‐echo sequence. The power deposition is independent of the number of slices acquired, and hence the power deposition per slice is considerably reduced compared to multislice imaging. Excellent image quality is obtained both in phantoms and in images of the human head. These pulses should find widespread application for multiplexed imaging, in particular at high static magnetic field strengths and for pulse sequences that have a high radiofrequency power deposition and could lead to dramatic increases in scanning efficiency. Magn Reson Med, 2011. © 2011 Wiley Periodicals, Inc.
Multiplexed imaging, radiofrequency pulses, Radiofrequency pulses, Phantoms, Imaging, Brain, 535, Magnetic Resonance Imaging, Radiofrequency power deposition, multiplexed imaging, 2741 Radiology Nuclear Medicine and imaging, Humans, radiofrequency power deposition, Computer Simulation
Multiplexed imaging, radiofrequency pulses, Radiofrequency pulses, Phantoms, Imaging, Brain, 535, Magnetic Resonance Imaging, Radiofrequency power deposition, multiplexed imaging, 2741 Radiology Nuclear Medicine and imaging, Humans, radiofrequency power deposition, Computer Simulation
| selected citations These citations are derived from selected sources. This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | 122 | |
| popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network. | Top 10% | |
| influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | Top 10% | |
| impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network. | Top 10% |
