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Abstract #4591

Non-Uniform Self-Gating for 2D Lung Imaging using Single Petal Rosette Trajectory

Hanna Frantz1, Fabian Bschorr1, Tobias Speidel1, and Volker Rasche1
1Ulm University Hospital, Ulm, Germany

Synopsis

Keywords: Motion Correction, Motion Correction, Self-Gating

Motivation: Major limitation of lung MRI is irregular respiratory motion which can be overcome by the retrospective non-uniform self-gating approach.

Goal(s): Additionally, achieving a sufficient temporal resolution is crucial for clinical evaluations and the assessment of physiological parameters.

Approach: This abstract presents a single-petal rosette UTE trajectory in combination with non-uniform self-gating as compared to a 1D image-based, retrospective self-gating approach and furthermore, to the radial UTE trajectory.

Results: SPR combined with nuSG proves suitable and especially benefits from the improved high temporal resolution images that image-based self-gating builds on.

Impact: This abstract presents the suitability of the non-uniform self-gating approach for 2D lung imaging using single petal rosette trajectory.

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Keywords