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.