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.

Agency
National Institute of Health (NIH)
Institute
National Heart, Lung, and Blood Institute (NHLBI)
Type
Intramural Research (Z01)
Project #
1Z01HL004608-06
Application #
7158613
Study Section
Cancer Etiology Study Section (CE)
Project Start
Project End
Budget Start
Budget End
Support Year
6
Fiscal Year
2005
Total Cost
Indirect Cost
Name
U.S. National Heart Lung and Blood Inst
Department
Type
DUNS #
City
State
Country
United States
Zip Code
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Nezafat, Reza; Kellman, Peter; Derbyshire, J Andrew et al. (2005) Real-time blood flow imaging using autocalibrated spiral sensitivity encoding. Magn Reson Med 54:1557-61
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Larson, Andrew C; Kellman, Peter; Arai, Andrew et al. (2005) Preliminary investigation of respiratory self-gating for free-breathing segmented cine MRI. Magn Reson Med 53:159-68

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