Abstract: A method and apparatus for reducing vibration-related artifacts in diffusion weighted imaging determines a vibrational frequency of an MR system and modifies scan parameters such that vibrational frequencies induced on the MR system are inconsistent with the vibrational frequency of the MR system. The method and apparatus improves image quality of MR images acquired using diffusion weighted imaging techniques with the MR system. As such, modification and/or redesign of the MR system to reduce vibrational frequency interaction is reduced.

Abstract: A method and system of MR imaging is disclosed that enables PROPELLER imaging to be feasibly carried out independently of slice orientation or anatomy of interest. The invention is directed to the acquisition of blades of MR data that are rotated about a central region of k-space and reconstructing an image of arbitrary slice orientation from the blades of MR data that is substantially absent of radial ripple artifacts caused by phase aliasing from tissue outside the field of view in the slice plane.

Abstract: A sequence description defining the events for traversing k-space during a medical imaging scan is defined through a k-space graphical view, thereby providing an easy programming interface for MR physicists. From the k-space view, data elements can be generated by object-oriented sequence description components in the form of predefined sequences. The data elements generated by the predefined sequences are stored in a table, the lines in the table defining an ordered list of pulse segments associated with each trajectory in k-space, the table can also hold information on time ordering or sequencing of k-space trajectories, desired triggering for each k-space trajectory and similar data objects. The k-space description/configuration of sequences is then translated to a group of downloadable sequence components.

Abstract: A sequence description defining the events for traversing k-space during a medical imaging scan is defined through a k-space graphical view, thereby providing an easy programming interface for MR physicists. From the k-space view, data elements can be generated by object-oriented sequence description components in the form of predefined sequences. The data elements generated by the predefined sequences are stored in a table, the lines in the table defining an ordered list of pulse segments associated with each trajectory in k-space, the table can also hold information on time ordering or sequencing of k-space trajectories, desired triggering for each k-space trajectory and similar data objects. The k-space description/configuration of sequences is then translated to a group of downloadable sequence components.