Phase-unwrapping algorithm for translation extraction from spherical navigator echoes

Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine
Junmin Liu, Maria Drangova

Abstract

Spherical navigator echoes have been shown to determine rigid-body rotation and translation simultaneously. Following the determination of rotation, translations are determined from the phase change between the baseline and transformed spherical navigator echoes. Because the measured phase change is limited in the interval (-pi, pi), a phase-unwrapping algorithm is required to recover the true phase change in absolute values. The unwrapping algorithm presented in this article is based on a priori information about the true translation-induced phase-change function. The algorithm is verified using simulation and in vivo experiments, and the accuracy and precision of translation determination are evaluated. Specifically, the effects of background and off-resonance-induced phase noise are explored. When the proposed phase-unwrapping algorithm was used, translations up to 15 mm were measured, with accuracy better than 5%; for translations up to 40 mm, an error of approximately 10% was observed.

References

Mar 1, 1992·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·M Hedley, D Rosenfeld
Dec 1, 1994·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·S T Wong, M S Roos
Nov 1, 1995·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Z W FuR L Ehman
Dec 1, 1995·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·H Gudbjartsson, S Patz
Oct 27, 1997·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·G Morrell, D Spielman
Oct 25, 2001·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·T D NguyenI Mitchell
Jan 5, 2002·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Edward Brian WelchClifford R Jack
Sep 5, 2002·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Richard Watts, Yi Wang
Sep 28, 2002·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Dong-Hyun KimDaniel M Spielman
May 17, 2003·Applied Optics·Antonio Baldi
Feb 3, 2004·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Yasser M KadahXiaoping P Hu
Nov 25, 2004·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Edward Brian WelchClifford R Jack
Feb 4, 2005·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Andreu F CostaMaria Drangova
Apr 22, 2005·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Daniel W PetrieMaria Drangova
Jul 15, 1982·Applied Optics·K Itoh

❮ Previous
Next ❯

Citations

Sep 28, 2010·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Junmin Liu, Maria Drangova
Jun 22, 2010·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Junmin Liu, Maria Drangova
Jan 11, 2012·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Junmin Liu, Maria Drangova
Jul 28, 2016·Magnetic Resonance Imaging·Patricia M JohnsonMaria Drangova
Feb 7, 2018·IEEE Transactions on Medical Imaging·John S H BaxterMaria Drangova
Jun 3, 2010·Applied Optics·Jason A LangleyQun Zhao
Jun 27, 2019·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Richard P BuschbeckN Jon Shah

❮ 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
Junmin Liu, Maria Drangova
Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine
Daniel W PetrieMaria Drangova
Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine
Y WangR L Ehman
Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine
Junmin Liu, Maria Drangova
© 2022 Meta ULC. All rights reserved