| 摘要 |
<p>The current invention relates to novel methods for prospective motion correction of the head images during brain MRI. The invention uses fat navigators and acquired low-resolution images of the head obtained from RF excitation for tracking head motion of a subject. A method is described wherein essentially only fat-selective RF excitation is used to obtain low-resolution images. These images are compared to previously acquired images, and the orientation of the scan planes in a defined coordinate system of the MRI scan are adjusted to compensate for any movement compared to previous images. The method can be applied during the MRI scan and also integrated as part of the main diagnostic scan.</p> |
