Partial k-space reconstruction for radial k-space trajectories in magnetic resonance imaging

US7277597B2 · kind B2 · utility

Assignee

• The Board of Trustees of the Leland Stanford Junior University · US

Inventors

• Jin Hyung Lee · Suneung-ri, KR
• John M. Pauly · Stanford, US
• Dwight G. Nishimura · Palo Alto, US

Key dates

• Filing date: Jun 17, 2003
• Grant date: Oct 2, 2007
• Expiry date: May 9, 2025

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R33/561
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A modified projection on convex sets (POCS) algorithm and method for partial k-space reconstruction using low resolution phase maps for scaling full sets of reconstructed k-space data. The algorithm can be used with partial k-space trajectories in which the trajectories share a common point such as the origin of k-space, including variable-density spiral trajectories, projection reconstruction trajectories with a semicircle region acquisition, and projection reconstruction trajectories with every other spike acquired.