Meeting Banner
Abstract #3930

A Novel Position and Orientation Sensor for MRI

James A. Smith1, Glyn S. Spencer1, Richard W. Bowtell1, Penny A. Gowland1, and Paul M. Glover1

1Sir Peter Mansfield Imaging Centre, University of Nottingham, Nottingham, United Kingdom

The effect of head motion is a significant problem for MRI. Here we present the early stages in the development of a novel device which is able to measure head pose within the scanner. By using a combination of a commercially available 3-axis MEMS accelerometer and an anisotropic magnetoresitive bridge sensor, the orientation of the device is monitored with root-mean-square accuracy of ±0.12° while translation is estimated using voltages induced in a single coil by time-varying magnetic field gradients with an accuracy of ±0.45mm. With further development, this device could be used effectively for prospective and retrospective motion correction.

This abstract and the presentation materials are available to members only; a login is required.

Join Here