Abstract #0006

Toward “plug and play” prospective motion correction for MRI by combining observations of the time varying gradient and static vector fields.

Adam Marthinus Johannes van Niekerk¹, Andre van der Kouwe^1,2,3, and Ernesta Meintjes^1,4,5

¹Biomedical Engineering Research Centre, Division of Biomedical Engineering, Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa, ²Athinoula A. Martinos Center, Massachusetts General Hospital, Charlestown, MA, United States, ³Radiology, Harvard Medical School, Boston, MA, United States, ⁴Cape Universities Body Imaging Centre, Cape Town, South Africa, ⁵Neuroscience Institute, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa

Introducing additional hardware to measure patient motion allows for fast and accurate prospective motion correction that has minimal or no impact on the imaging pulse sequence. This does however entail additional setup that in some cases may be challenging to translate into a dynamic clinical setting. In this work we explore the use of an intelligent marker - a Wireless Radiofrequency-triggered Acquisition Device (WRAD) - for prospective motion correction. This new approach incorporates all additional hardware (besides a wireless receiver) into the marker that is attached to the subject. Initial results show improved image quality without scanner specific calibration.

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