PMID: 9178246Jun 1, 1997Paper

Reduction of geometric and intensity distortions in echo-planar imaging using a multireference scan

Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine
X WanG L Zeng

Abstract

Echo-planar imaging (EPI) is very sensitive to patient-induced field inhomogeneity caused by susceptibility changes between different anatomical regions. This results in geometric and intensity distortions in the image, especially near tissue/air and tissue/bone interfaces. A new approach is presented to reduce geometric and intensity distortions in EPI. A phase-encoded multireference scan is used to estimate the amplitude and phase errors in the measured signals due to the field inhomogeneity. The EPI data is corrected using both the amplitude and phase of the measured errors. This technique has been evaluated using EPI pulse sequences implemented with conventional gradients and implemented with imaging systems that have special resonating gradients and fast analog to digital converters. The results in both phantom and human studies show that in the absence of object motion the new correction technique can effectively reduce the geometric and intensity distortions.

References

Feb 1, 1992·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·H BruderF Schmitt
Aug 1, 1991·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·K Oshio, D A Feinberg
Apr 1, 1990·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·F FarzanehN J Pelc
Sep 1, 1987·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·B ChapmanP Mansfield
Jul 1, 1995·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·P Jezzard, R S Balaban
Nov 1, 1993·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·G C McKinnon
Jan 1, 1986·IEEE Transactions on Medical Imaging·C B AhnZ H Cho

❮ Previous
Next ❯

Citations

Jun 18, 1999·Journal of Magnetic Resonance Imaging : JMRI·S B ReederE R McVeigh
Jun 17, 1999·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·N K Chen, A M Wyrwicz
Jul 10, 1999·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·T ErnstL Chang
Mar 10, 2001·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·N K Chen, A M Wyrwicz
Jul 12, 2002·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Huairen Zeng, R Todd Constable
Sep 5, 2002·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Zhu LiShi-Jiang Li
Jul 31, 2001·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·P Kellman, E R McVeigh
Nov 2, 2007·Magma·Oliver SpeckM Zaitsev
Dec 19, 1998·Magnetic Resonance Imaging·D A Fenyes, P A Narayana
Jan 14, 2010·International Journal of Biomedical Imaging·Dominik PaulDominik von Elverfeldt
Jan 13, 2012·PloS One·Steffen StoewerNatasha Sigala
Oct 2, 2002·Radiology·Shi-Jiang LiPiero G Antuono
Jul 18, 2009·Magnetic Resonance Imaging·Noam Ben-EliezerLucio Frydman
Dec 17, 2014·Magnetic Resonance in Medical Sciences : MRMS : an Official Journal of Japan Society of Magnetic Resonance in Medicine·Toshiya AzumaKatsutoshi Murata
Dec 20, 2008·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Udomchai TechavipooSong Lai
Apr 27, 2011·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Bertram J WilmKlaas P Pruessmann
Jul 29, 2010·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Daniel GallichanKarla L Miller
Jul 19, 2012·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Iulius DragonuMaxim Zaitsev
Jan 4, 2012·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Sinyeob Ahn, Xiaoping P Hu
Jan 4, 2012·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Se-Hong OhZang-Hee Cho
Oct 27, 2004·Journal of Magnetic Resonance·Nan-kuei ChenRobert V Mulkern
Apr 28, 2000·IEEE Transactions on Medical Imaging·J KybicM Unser
Apr 29, 2003·IEEE Transactions on Medical Imaging·Jr-Yuan ChiouOrhan Nalcioglu
Apr 9, 2013·Journal of Magnetic Resonance·Eddy SolomonLucio Frydman
Sep 24, 2016·Human Brain Mapping·Joana R LoureiroMarc Himmelbach
Feb 17, 2017·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Munish ChauhanRosalind Sadleir
Jun 2, 2004·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Nan-kuei Chen, Alice M Wyrwicz
Jan 21, 2018·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Alexander LoktyushinKlaus Scheffler
May 18, 2006·NMR in Biomedicine·Peter Kellman, Elliot R McVeigh
Aug 8, 2006·Journal of Magnetic Resonance Imaging : JMRI·Guoxiang Liu, Seiji Ogawa
Mar 29, 2007·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Qing-San Xiang, Frank Q Ye
Aug 31, 2007·Journal of Magnetic Resonance Imaging : JMRI·Franck LambertonMarc Joliot
Sep 28, 2005·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Siamak Ardekani, Usha Sinha

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine
P J ReberL R Frank
Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine
N K Chen, A M Wyrwicz
Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine
Y M Kadah, X Hu
Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine
X Hu, T H Le
Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine
M D RobsonR T Constable
© 2021 Meta ULC. All rights reserved