According to an aspect of the present inventive concept there is provided a method for diffusion weighted magnetic resonance imaging, comprising: generating by a gradient coil of a magnetic resonance imaging scanner a time-dependent magnetic field gradient G(t) = [Gx(t) Gy(t) Gz(t)]T, wherein the gradient G is asymmetric in time with respect to a refocusing pulse and wherein the gradient G is such that A = ?0 TE h(t)G(t)G(t)Tdt is zero, where TE is an echo time and /i(t) is a function of time which is positive during an interval prior to the refocusing pulse and negative during a time interval after the refocusing pulse.
