Global ETD Search
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Showing 1 to 5 of 5 for “"RF pulse design"”.
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Design of multidimensional radiofrequency pulses in magnetic resonance imaging
Multidimensional radiofrequency (RF) pulses have wide applications in magnetic resonance imaging and spectroscopy experiments. These applications include reduced field-of-view (FOV) imaging of region-of-interest (ROI), B1 inhomogeneity correction, and simultaneous spatial-spectral selective …
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Parallel radiofrequency transmission for 3 Tesla and 7 Tesla magnetic resonance imaging
… the tissue heating rate due to radiofrequency (RF) energy deposition (also called specific absorption rate or SAR) increases, limiting the imaging speed. Parallel RF transmission (pTx) was proposed to address both of these challenges by optimization of RF pulses transmitted from multiple …
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Local and global SAR constrained large tip angle 3D kT̳-points parallel transmit pulse design at 7 T
… can be mitigated through radio frequency (RF) pulse design with conventional single-channel RF systems, but at the cost of impractically long pulses. Parallel transmit (pTx) systems with multiple independent and simultaneous RF transmit channels achieve transmit field inhomogeneity …
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Parallel transmission for magnetic resonance imaging on a 9.4 Tesla Human System.
… techniques. Multidimensional spatially selective RF pulses have been proposed as a method to mitigate B1+ inhomogeneity. However, those RF pulses are typically very long and are impractical at high field. Parallel transmission, an emerging technique, makes it possible to design sufficiently short …
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Excitation and readout Designs for high field spectroscopic imaging
… that arise in magnetic resonance imaging RF excitation with parallel transmission (pTx) and magnetic resonance spectroscopic imaging (MRSI). Recent work in parallel RF excitation in MRI has been demonstrated to offer dramatically improved flexibility for manipulation of magnetization …