Meeting Banner
Abstract #0562

Visualizing Encoding Efficiency of MR Fingerprinting Sequences using Leave-One-Out Perturbation (LOOP)

Christian Guenthner1, Johanna Stimm1, and Sebastian Kozerke1
1ETH and University Zurich, Zurich, Switzerland


In Magnetic Resonance Fingerprinting, the accuracy of the results is dominated by undersampling artifacts. While in classical relaxometry techniques, the omission of data always leads to a larger error, in fingerprinting, undersampling artifacts can lead to both an increase or a decrease in error. The “temporal encoding efficiency” of fingerprinting can be analyzed based on the change in matching error upon omission of a single time point (leave-one-out). We propose a first-order perturbation of the undersampling error to visualize and identify temporal sequence segments of primary parameter encoding and apply these insights to shorten an exemplary MRF sequence by truncation.

This abstract and the presentation materials are available to members only; a login is required.

Join Here