Patent ID: 9494670
Filing Date: 2016-11-15
CPC Classification: G01R

Claim Text:
1. A method of magnetic resonance (=MR) imaging for the acquisition of a three-dimensional (=3D) dataset of an object of investigation, wherein spatial encoding by three mutually orthogonal magnetic field gradients is performed such that a signal is readout under a read-gradient in one spatial direction (k 1 ) and spatial encoding in the other two spatial directions (k 2 , k 3 ) is performed by applying phase encoding gradients in the other two spatial directions (k 2 , k 3 ) prior to signal acquisition with data acquisition being performed in a sequential manner such that, at each acquisition step, a signal is acquired under the readout gradient, but with different combinations of the two phase encoding gradients, the method comprising the steps of: a) applying a temporal sequence of spatial encoding such that a basic dataset containing N b) acquiring a complimentary dataset in which N c) monitoring motion of the object of investigation using navigators or by extrinsic motion detection devices; and d) terminating data acquisition whenever involuntary motion exceeds a predefined threshold.