System for ordering frequency domain components representing MR image data

摘要

A system orders acquisition of frequency domain components representing MR image data for storage in a storage array (e.g., k-space). A storage array of individual data elements stores corresponding individual frequency components comprising an MR dataset. The array of individual data elements has a designated center and individual data elements individually have a radius to the designated center. A magnetic field generator generates a magnetic field for use in acquiring multiple individual frequency components corresponding to individual data elements in the storage array. The individual frequency components are successively acquired in an order in which radius of respective corresponding individual data elements increases and decreases as the multiple individual frequency components are sequentially acquired during acquisition of an MR dataset representing an MR image. A storage processor stores individual frequency components acquired using the magnetic field in corresponding individual data elements in the array.

主权项

1. A system for ordering acquisition of frequency domain components representing MR image data for storage in an array, comprising:
a storage array of individual data elements for storing corresponding individual frequency components representing an MR dataset of an anatomical region of interest, including components of a low spatial frequency, an intermediate spatial frequency and a high spatial frequency; a magnetic field generator for generating a magnetic field for use in acquiring a plurality of individual frequency components in order of said intermediate spatial frequency, said high spatial frequency and said low spatial frequency, said high spatial frequency substantially corresponding to a maximum radius value of said region of interest from a designated center of said array; and a storage processor for storing individual frequency components acquired using said magnetic field in corresponding individual data elements in said array, wherein said individual frequency components are successively acquired in an order in which radius of respective corresponding individual data elements increases and decreases along a substantially spiral path as said plurality of individual frequency components is sequentially acquired during acquisition of an MR dataset representing an MR image.