Abstract #3231

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

Grzegorz Bauman^1,2 and Oliver Bieri^1,2

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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