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A robust method for auto-synchronized cine mri in the mouse at 7 t.
| Content Provider | CiteSeerX |
|---|---|
| Author | Hiba, B. Richard, N. Janier, M. Croisille, P. |
| 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 cine images in mouse heart. In our approach, a motion synchronization signal is extracted from the echo peak MR signal of a nontriggered 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. 1. |
| File Format | |
| Access Restriction | Open |
| Subject Keyword | Robust Method Auto-synchronized Cine Mri Mouse Heart Vivo Experiment Auto-gating Robustness Ecg Signal Highly Asymmetric Echo Self-gated Cine-mri Radial Acquisition Echo Peak Mr Signal Alternative Robust Method Cine Image Reconstruction Present Study Respiratory Retrospective Gating Motion Synchronization Signal Radial K-space Sampling Many Technical Difficulty Ecg-gated Cardiac Mri Variable High Magnetic Scanner Field Auto-gated Cine Image Nontriggered Radial Acquisition |
| Content Type | Text |
