Patent ID: 8214013
Filing Date: 2012-07-03
Classification: G01R

Abstract:
1. A method for prescribing a scan on an MRI system, the steps comprising: a) selecting a general pulse sequence to be used during a time-resolved imaging process of a subject using an MRI system; b) setting a first set of scan parameters to more specifically prescribe the general pulse sequence; c) setting a second set of scan parameters using a formula that relates time resolution and spatial resolution resulting from the first set of scan parameters; d) performing the time-resolved imaging process using the general pulse sequence, the first set of scan parameters, and the second set of scan parameters; wherein the general pulse sequence employs a shell k-space sampling trajectory of a prescribed radius and a prescribed transmit repeat time (TR) between repetitions of the general pulse sequence throughout the time-resolved imaging process and wherein the TR varies between at least some shell k-space sampling trajectories; and wherein repetitions of the general pulse sequence throughout the time-resolved imaging process are performed using different prescribed radii between at least some shell k-space sampling trajectories and wherein the prescribed TR for small radii shell trajectories is shorter than the prescribed TR for large radii shell trajectories.