1. A method of generating a magnetic resonance image of a subject, the method comprising: detecting respiratory motion of the subject; acquiring k-space samples by fully sampling an elliptical central area of the (k y ,k z )-plane in k-space, wherein the k-space has a plurality of points, each point being representative of a potential sample and where each point of the (k y /k z )-plane corresponds to a full sampling of a line in k-space along k x , partially sampling an elliptical peripheral area of the (k y ,k z )-plane in k-space, wherein the peripheral area surrounds the central area; said partial sampling of the elliptical peripheral area according to random or pseudo-random sampling at a Poisson-disk distribution and a variable density decreasing outward in the (k y ,k z )-plane in k-space, at a pre-set sampling reduction factor; selection of sampling positions outside a pre-selected minimum distance from an already sampled point and minimising the distance between successively sampled points repeating the partial sampling of the elliptical peripheral area of the (k y ,k z )-plane, increasing the elliptical peripheral area until (a) a pre-set maximum resolution of the acquired k-space samples is reached or (b) respiratory motion of the subject is detected reconstructing using a compressed sensing technique, the magnetic resonance image of the subject using the k-space samples acquired before the detection of respiratory motion.