Patent ID: 7437188
Filing Date: 2008-10-14
Classification: G01R

Abstract:
1. A method for producing an image of a subject over an extended longitudinal field of view (FOV tot ) which is larger than a longitudinal field of view (FOV) of a magnetic resonance imaging (MRI) system having a defined longitudinal field of view (FOV), the steps comprising: a) moving the subject through the MRI system such that the extended longitudinal field of view (FOV b) continuously acquiring NMR data from the subject as the subject is moved through the longitudinal FOV during a scan by repeatedly performing an imaging pulse sequence which acquires NMR data comprising a view of the subject; c) Fourier transforming each acquired view; d) storing each transformed view in a data matrix; e) calculating phase correction values from central DC views acquired during the scan that have no phase encoding applied; f) phase correcting transformed views using the calculated phase correction values; and g) reconstructing an image from phase corrected and transformed views stored in the data matrix.