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Abstract #1782

Self-Gated Zero Echo Time Imaging of the Lung

Hanna Frantz1, Tobias Lobmeyer1, Patrick Metze1, Thomas Hüfken1, Kilian Stumpf1, Julien Rivoire2, Hizami Murad2, and Volker Rasche1
1Department of Internal Medicine II, Ulm University Medical Center, Ulm, Germany, 2RS2D, Mundolsheim, France


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 in 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. The presented approach relies on an interleaved combination of ZTE read-outs with different resolutions in combination with Compressed Sensing, to acquire the k-space center, thus enabling k-space based self-gating.

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