Cardiac and respiratory double self‐gated cine MRI in the mouse at 7 T
Citations Over TimeTop 10% of 2006 papers
Abstract
ECG-gated cardiac MRI in the mouse is hindered by many technical difficulties in ECG signal recording inside static and variable high magnetic scanner fields. The present study proposes an alternative robust method of acquiring auto-gated cardiac and respiratory cine images in mouse heart. In our approach, a motion synchronization signal is extracted from the echo peak MR signal of a non-triggered radial acquisition. This signal is then used for both cardiac and respiratory retrospective gating before cine image reconstruction. Highly asymmetric echoes were acquired to achieve the radial k-space sampling in order to avoid radial acquisition related artifacts and to increase auto-gating robustness. In vivo experiments demonstrated the feasibility and robustness of self-gated cine-MRI in the mouse heart at 7T. The signal-to-noise and contrast-to-noise ratios of the self-gated and ECG-gated images were comparable, all parameters being equal. Magn Reson Med, 2006. (c) 2006 Wiley-Liss, Inc.
Related Papers
- → Gap junction channel gating(2004)309 cited
- → Fast and slow gating of sodium channels encoded by a single mRNA(1990)161 cited
- → Pore-to-gate coupling of HCN channels revealed by a pore variant that contributes to gating but not permeation(2005)17 cited
- → K+‐dependent gating of Kir1.1 channels is linked to pH gating through a conformational change in the pore(2001)35 cited
- → Revealing a hidden conducting state by manipulating the intracellular domains in K V 10.1 exposes the coupling between two gating mechanisms(2023)