Helen Marshall1, Salma Ajraoui1, James M. Wild1
1Academic Unit of Radiology,
The study of ventilation dynamics with hyperpolarised 3He requires a fast imaging sequence to capture the flow of contrast into the lungs. Radial acquisition, among other sequences, has previously been demonstrated for this purpose. However, images from a standard radial acquisition are constrained to a fixed resolution determined at the acquisition stage. Here golden angle radial sampling was used to image the inhalation of hyperpolarised 3He and compared to a standard, sequential radial acquisition. Golden angle radial imaging enabled reconstruction of the dynamic dataset at any chosen spatio-temporal resolution, providing improved visualisation of the initial stages of inhalation.