Interventional cardiovascular procedures guided by real-time MR imaging: an interactive interface using multiple slices, adaptive projection modes and live 3D renderings |
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Authors: | Guttman Michael A Ozturk Cenghizhan Raval Amish N Raman Venkatesh K Dick Alexander J DeSilva Ranil Karmarkar Parag Lederman Robert J McVeigh Elliot R |
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Affiliation: | Laboratory of Cardiac Energetics, Division of Intramural Research, National Heart Lung and Blood Institute, National Institutes of Health, Bethesda, Maryland 20892-1061, USA. mguttman@nih.gov |
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Abstract: | PURPOSE: To develop and test a novel interactive real-time MRI environment that facilitates image-guided cardiovascular interventions. MATERIALS AND METHODS: Color highlighting of device-mounted receiver coils, accelerated imaging of multiple slices, adaptive projection modes, live three-dimensional (3D) renderings and other interactive features were utilized to enhance navigation of devices and targeting of tissue. RESULTS: Images are shown from several catheter-based interventional procedures performed in swine that benefit from this custom interventional MRI interface. These include endograft repair of aortic aneurysm, balloon septostomy of the cardiac interatrial septum, angioplasty and stenting, and endomyocardial cell injection, all using active catheters containing MRI receiver coils. CONCLUSION: Interactive features not available on standard clinical scanners enhance real-time MRI for guiding cardiovascular interventional procedures. |
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Keywords: | interventional MRI real‐time MRI image guided interventions catheterization user interface |
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