Model-based Nyquist ghost correction for reverse readout echo planar imaging

US12044764B2 · kind B2 · utility

Assignee

• Mayo Foundation for Medical Education and Research · US

Inventors

• Joshua D. Trzasko · Rochester, US
• Uten Yarach · Rochester, US
• Matthew A. Bernstein · Waukesha, US
• Myung-Ho In · Rochester, US
• Yi Sui · Rochester, US

Key dates

• Filing date: Dec 1, 2020
• Grant date: Jul 23, 2024
• Expiry date: Apr 2, 2041

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R33/5616
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Nyquist ghost artifacts in echo planar imaging (“EPI”) are mitigated, reduced, or otherwise eliminated by implementing robust Nyquist ghost correction (“NGC”) directly from two reversed readout EPI acquisitions. As one advantage, these techniques do not require explicit reference scanning. A model-based process is used for directly estimating statistically optimal NGC coefficients from multi-channel k-space data.