Parallel magnetic resonance imaging of gas-liquid flows

Publikationstyp
Conference Paper
Date Issued
2015
Sprache
English
Author(s)
Müller, Christoph Rüdiger  
Penn, Alexander  orcid-logo
Pruessmann, Klaas Paul  
TORE-URI
http://hdl.handle.net/11420/8086
Citation
March Meeting of the American Physical Society (2015)
Contribution to Conference
March Meeting of the American Physical Society 2015  
Publisher Link
https://ui.adsabs.harvard.edu/abs/2015APS..MARG34008M/abstract
Gas-liquids flows are commonly encountered in nature and industry. Experimental measurements of gas-liquid flows are challenging since such systems can be visually opaque and highly dynamic. Here we report the implementation of advanced magnetic resonance imaging (MRI) strategies allowing us to probe the dynamics (voidage and velocity measurements) of gas-liquid flows with ultra-fast acquisition speeds. Specifically, parallel MRI which exploits the spatial encoding capabilities of multiple receiver coils was implemented. To this end a tailored, 16 channels MR receive array was constructed and employed in the MR acquisition. A magnetic susceptibility matched gas-liquid system was set-up and used to probe the motion, splitting and coalescence of bubbles. The temporal and spatial resolution of our acquired data was 5 ms and 3.5 mm x 3.5 mm, respectively. The total field of view was 200 mm x 200 mm. We will conclude with an outlook of further possible advances in MRI that have the potential to reduce substantially the acquisition time, providing flexible gains in temporal and spatial resolution.