Abstract: A system acquires MR imaging data of a portion of patient anatomy associated with proton spin lattice relaxation time in a rotating frame using an RF (Radio Frequency) signal generator configured to generate RF excitation pulses and a magnetic field gradient generator configured to generate anatomical volume select magnetic field gradients for phase encoding and readout RF data acquisition. The RF signal generator and the gradient generator are configured to provide a rotating frame preparation pulse sequence comprising at least one of, (a) a T1 spin lattice relaxation in a rotating frame (T1?) preparation pulse sequence of adiabatic pulses comprising modulated RF pulses and modulated magnetic field gradients for slice selection and (b) a T2 spin-spin relaxation in a rotating frame (T2?) preparation pulse sequence of adiabatic pulses comprising modulated RF pulses and modulated magnetic field gradients for slice selection.

Abstract: Disclosed herein is a framework for facilitating low power perfusion imaging. In accordance with one aspect, a gradient-modulated constant-adiabaticity radio frequency pulse sequence is generated. A labeling pulse from the pulse sequence is applied to a region of interest to label fluid supplying the region of interest and to acquire a tagged image. A control pulse from the pulse sequence may also be applied to the region of interest to acquire a control image. A perfusion image may then be generated using the tagged image and the control image.

Abstract: A system acquires MR imaging data of a portion of patient anatomy associated with proton spin lattice relaxation time in a rotating frame using an RF (Radio Frequency) signal generator configured to generate RF excitation pulses and a magnetic field gradient generator configured to generate anatomical volume select magnetic field gradients for phase encoding and readout RF data acquisition.