ULTRA-FAST MRI FOR CARDIOVASCULAR APPLICATIONS Realtime interventional MRI techniques continue to be improved through the development of new imaging methods and pre-clinical implementation of procedures. We have implemented a reduced field of view projection reconstruction technique and a self gated technique which is a development along the way to wireless gating. The imaging techniques have been demonstrated in MRI guided endovasucalar repair of aortic aneurysm. We have also implemented a novel efficient method for the separation of fat and water signals with steady state free precession imaging, and we have demonstrated myocardial tagging in a single heartbeat. Both developments will prove useful when imaging function in realtime during the application of therapy, or for realtime stress testing.
| Nezafat, Reza; Thompson, Richard B; Derbyshire, J Andrew et al. (2006) Partial field-of-view spiral phase-contrast imaging using complex difference processing. Magn Reson Med 56:676-80 |
| Kellman, Peter; McVeigh, Elliot R (2006) Phased array ghost elimination. NMR Biomed 19:352-61 |
| Raval, Amish N; Karmarkar, Parag V; Guttman, Michael A et al. (2006) Real-time magnetic resonance imaging-guided endovascular recanalization of chronic total arterial occlusion in a swine model. Circulation 113:1101-7 |
| Raval, Amish N; Karmarkar, Parag V; Guttman, Michael A et al. (2006) Real-time MRI guided atrial septal puncture and balloon septostomy in swine. Catheter Cardiovasc Interv 67:637-43 |
| Kellman, Peter; Larson, Andrew C; Hsu, Li-Yueh et al. (2005) Motion-corrected free-breathing delayed enhancement imaging of myocardial infarction. Magn Reson Med 53:194-200 |
| Helm, Patrick A; Tseng, Hsiang-Jer; Younes, Laurent et al. (2005) Ex vivo 3D diffusion tensor imaging and quantification of cardiac laminar structure. Magn Reson Med 54:850-9 |
| Derbyshire, J A; Herzka, D A; McVeigh, E R (2005) S5FP: spectrally selective suppression with steady state free precession. Magn Reson Med 54:918-28 |
| Kellman, Peter; Chung, Yiu-Cho; Simonetti, Orlando P et al. (2005) Multi-contrast delayed enhancement provides improved contrast between myocardial infarction and blood pool. J Magn Reson Imaging 22:605-13 |
| Thompson, Richard B; Aviles, Ronnier J; Faranesh, Anthony Z et al. (2005) Measurement of skeletal muscle perfusion during postischemic reactive hyperemia using contrast-enhanced MRI with a step-input function. Magn Reson Med 54:289-98 |
| Kellman, Peter; McVeigh, Elliot R (2005) Image reconstruction in SNR units: a general method for SNR measurement. Magn Reson Med 54:1439-47 |
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