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Abstract #1000

High spatial and temporal free breathing T1 contrast enhanced imaging using a novel 4D variable density, elliptical centric radial stack-of-stars sharing approach

Gabriele M. Beck1, Suthambhara Nagaraj2, Joao Silva Canaveira Tourais3, Jan Hendrik Wuelbern4, and Johannes M. Peeters1

1Philips Healthcare, Best, Netherlands, 2Philips Healthcare, Bangalore, India, 3Technical University Eindhoven, Eindhoven, Netherlands, 4Philips Research Europe, Hamburg, Germany

Non-Cartesian acquisitions combined with parallel imaging and compressed sensing have been proposed for high spatial and temporal resolution free breathing motion robust 4D contrast enhanced applications. While these approaches provide substantial reduction of contrast blurring and motion robustness, the sampling in itself may still provide limitations to capture the temporal image content. Our approach focuses on the optimization of the 4D sampling strategy with a unique 4D variable density, elliptical-centric radial stack of stars sharing approach. This approach reduces not only the minimum scan time of the 4D scan but also provide possibilties to optimally adjust and capture temporal information like motion and contrast enhancement.

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