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Abstract #0906

Zero Echo Time Imaging Using Low Resolution k-Space Interleaves

Hanna Frantz1, Thomas Huefken1, Patrick Metze1, Kilian Stumpf1, Tobias Speidel1, and Volker Rasche1
1Department of Internal Medicine II, Ulm University Medical Center, Ulm, Germany

Zero echo time (ZTE) imaging is an established approach for three-dimensional imaging of tissues and materials with ultrashort T2* relaxation times. An intrinsic disadvantage of this approach are missing data points within the center region of k-space due to hardware limitations. These missing points are often retrospectively interpolated or subsequently acquired using single-point imaging approaches or additional ZTE acquisitions with decreased resolutions. This abstract presents an approach that relies on the interleaved combination of ZTE read-outs with different resolutions combined with a Compressed Sensing reconstruction, to acquire more information around the k-space center, for high-quality ZTE without prolonged acquisition times.

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