Experimental analysis of parallel excitation using dedicated coil setups and simultaneous RF transmission on multiple channels
- 9 September 2005
- journal article
- research article
- Published by Wiley in Magnetic Resonance in Medicine
- Vol. 54 (4), 994-1001
- https://doi.org/10.1002/mrm.20646
Abstract
An experimental implementation and first performance analysis of parallel spatially selective excitation with an array of transmit coils and simultaneous transmission of individual waveforms on multiple channels is presented. This technique, also known as Transmit SENSE, uses the basic idea of parallel imaging to shorten the k‐space trajectories that accompany multidimensional excitation pulses, and hence shorten the duration of such pulses. So far, this concept has only been presented in simulations and semi‐experimental studies since no hardware setup had been available for a full experimental realization. In this study, a hardware solution, in combination with a dedicated coil setup, is presented to overcome this limitation, and in several experiments of localized excitation and transmit field inhomogeneity compensation the practical feasibility of Transmit SENSE is demonstrated and a first performance analysis is given. Magn Reson Med, 2005.Keywords
This publication has 13 references indexed in Scilit:
- Parallel excitation with an array of transmit coilsMagnetic Resonance in Medicine, 2004
- Transmit SENSEMagnetic Resonance in Medicine, 2002
- Three‐dimensional coronary MR angiography using zonal echo planar imagingMagnetic Resonance in Medicine, 1998
- Curved slice imagingMagnetic Resonance in Medicine, 1996
- 1H spectroscopic imaging using a spectral‐spatial excitation pulseMagnetic Resonance in Medicine, 1991
- Spatial localization in two dimensions using NMR designer pulsesJournal of Magnetic Resonance (1969), 1989
- A linear class of large-tip-angle selective excitation pulsesJournal of Magnetic Resonance (1969), 1989
- A k-space analysis of small-tip-angle excitationJournal of Magnetic Resonance (1969), 1989
- PROGRESS in efficient three-dimensional spatially localized in vivo31P NMR spectroscopy using multidimensional spatially selective (ϱ) pulsesJournal of Magnetic Resonance (1969), 1987
- Inner volume MR imaging: technical concepts and their application.Radiology, 1985