Physiological corrections in functional magnetic resonance imaging

US6073041A · kind A · utility

Assignee

• Regents of the University of Minnesota · US

Inventors

• Xiaoping Hu · Nanhu, CN
• Tuong Huu Le · Dallas, US
• Todd Parrish · Evanston, US
• Peter W. Erhard · Erlangen, DE

Key dates

• Filing date: May 11, 1998
• Grant date: Jun 6, 2000
• Expiry date: May 11, 2018

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R33/5676
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A functional magnetic resonance imaging method comprises the steps of: PA1 (a) detecting a physiological timing profile; PA1 (b) measuring cerebral k-space data to provide cerebral k-space data; PA1 (c) ordering the measured cerebral k-space data into a unit cycle based on the detected physiological timing profile; PA1 (d) estimating effects on individual k-space points resulting from physiological effects by non-linear least-square fitting to provide estimated physiological effects; and PA1 (e) removing the estimated physiological effects from the cerebral k-space data by substraction of the estimated physiological effects from said k-space data.