Published in:
Open Access
01-01-2014 | Poster presentation
Interactive black blood preparation for interventional cardiovascular MRI
Authors:
Anthony Z Faranesh, Michael Hansen, Toby Rogers, Robert J Lederman
Published in:
Journal of Cardiovascular Magnetic Resonance
|
Special Issue 1/2014
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Excerpt
Recent work demonstrated the feasibility of using real-time MRI to guide right heart cardiac catheterization. In order to make balloon catheters used in the procedure more conspicuous, the balloons were filled with dilute Gd-DTPA, and non-selective saturation pulses were applied along with acquisition of thick slices. The saturation pulses increased the contrast between blood and the Gd-DTPA filled balloons, but suppressed the signal from the background tissue, effectively removing the anatomical context for image-guidance. The goal of this work was to develop an interactive black blood technique, which would preserve the high contrast of the Gd-DTPA balloon and preserve background tissue signal. …
