Abstract #3208

Real-time speech MRI: what is the optimal temporal resolution for clinical velopharyngeal closure assessment?

Matthieu Ruthven^1,2, Andreia C. Freitas³, Stephen F. Keevil^2,4, and Marc E. Miquel¹

¹Clinical Physics Department, Barts Health NHS Trust, London, United Kingdom, ²Imaging Sciences & Biomedical Engineering Research Division, King's College London, London, United Kingdom, ³William Harvey Research Institute, Queen Mary University of London, London, United Kingdom, ⁴Medical Physics Department, Guy's and St Thomas' NHS Foundation Trust, London, United Kingdom

Clinical velopharyngeal closure assessment involves imaging patients while they perform standard speech tasks. Real-time MRI could offer an alternative to the imaging techniques used at present, however, there is currently no consensus on the optimal temporal resolution. The purpose of this study is to determine an optimal temporal resolution by comparing the numbers of velopharyngeal closures in high temporal resolution and simulated lower temporal resolution datasets of healthy adult volunteers. The results of this study suggest that the optimal temporal resolution is between 7.5 and 10 frames per second. Future work will aim to pinpoint and validate this resolution.

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