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Abstract #0720

Simultaneous acquisition of perfusion maps and 4D MR angiography by means of arterial spin labeling MRI

Yuriko Suzuki 1 , Wouter M Teeuwisse 2 , Sophie Schmid 2 , Peter Koken 3 , Marc Van Cauteren 4 , Michael Helle 3 , and Matthias JP van Osch 2

1 Philips Electronics Japan, Minato-ku, Tokyo, Japan, 2 C.J.Gorter Center for High Field MRI, Departement of Radiology, Leiden University Medical Center, Leiden, Netherlands, 3 Philips Research Laboratories, Hamburg, Germany, 4 Philips Healthcare Asia Pasific, Tokyo, Japan

Both 4D magnetic resonance angiography (4D-MRA) and perfusion imaging have proved their value in the characterization of hemodynamic pathology in cerebrovascular disease, and their complementary information provides a complete picture of the hemodynamic status, which may prove especially important in conditions such as acute stroke. In this study, we propose the simultaneous acquisition of ASL-based perfusion image and MRA by combining a time-encoded ASL preparation with two sequential readout modules which have different spatial resolution: a high-resolved sequence for 4D MRA immediately followed by low resolution sequence for perfusion imaging.

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