STANFORD UNIVERSITY
EE 350 RADIOSCIENCE SEMINAR
Professor Howard Zebker

Fall 2001-2002

Date: Wednesday, October 24, 2001
Time: 4:15 PM; Refreshments at 4:00 PM
Location: 460-334


Correction of Phase Aberations in MRI

Prof. John Pauly
Dept. of Electrical Engineering Stanford University

Abstract

Fast methods for magnetic resonance imaging (MRI) are the basis for heart maging, visualization of brain function, and for the diagnosis and management of stroke patients. In each of these cases imaging speed and resolution is limited by phase errors due to frequency variations in the subject, imperfections in the imaging hardware, and subject motion. In this talk I will describe the nature of these errors. Then I will present several of the methods that have been developed for phase error correction. Finally I will describe some of the fundamental limits to these types of corrections.