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Abstract #3231

Free-breathing thoracic imaging using balanced steady-state free precession with half-radial dual-echo readout (bSTAR)

Grzegorz Bauman1,2 and Oliver Bieri1,2
1Department of Radiology, Division of Radiological Physics, University of Basel Hospital, Basel, Switzerland, 2Department of Biomedical Engineering, University of Basel, Allschwil, Switzerland

In this work, we demonstrate the application of free-breathing respiratory self-gated thoracic MRI with balanced steady-state free precession half-radial dual-echo imaging technique (bSTAR) in human subjects. The technique combines an efficient minimal-TR readout sampling with an interleaved randomly tilted Archimedean spiral trajectory. The methodological improvements result in high-quality visualization of pulmonary parenchyma and vessel structure. The proposed k-space sampling scheme allows reconstruction of multi-volume data sets at different respiratory phases.

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