Free Breathing Hyperpolarized 3He Lung Ventilation Spiral MR Imaging. Implementation and Validation on a Clinical Scanner

Elise Bannier¹, Bruno Neyran¹, Katarzyna Cieslar¹, Julien Rivoire¹, Sophie Gaillard¹, Abdulrazzaq Sulaiman¹, Emmanuelle Canet-Soulas¹, Yannick Crmillieux¹

The purpose of this study was to validate in vivo on rabbits a spiral free breathing imaging protocol developed on a clinical scanner. A model of MR signal dynamics was used upstream to optimize sequence and protocol parameters and downstream to extract global physiological parameters from the acquired signal. Time resolved images were reconstructed using cine retrospective synchronization and parametric maps computed.