Use of spherical harmonic deconvolution methods to compensate for nonlinear gradient effects on MRI images

Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine
Andrew JankeDavid M Doddrell

Abstract

Spatial encoding in MR techniques is achieved by sampling the signal as a function of time in the presence of a magnetic field gradient. The gradients are assumed to generate a linear magnetic field gradient, and typical image reconstruction relies upon this approximation. However, high-speed gradients in the current generation of MRI scanners often sacrifice linearity for improvements in speed. Such nonlinearity results in distorted images. The problem is presented in terms of first principles, and a correction method based on a gradient field spherical harmonic expansion is proposed. In our case, the amount of distortion measured within a typical field of view (FOV) required for head imaging is sufficiently large that without the use of some distortion correction technique, the images would be of limited use for stereotaxy or longitudinal studies, where precise volumetric information is required.

References

Jan 1, 1992·Magnetic Resonance Imaging·C J BakkerR Beersma
May 1, 1987·Journal of Computer Assisted Tomography·L SchadW J Lorenz
Jul 1, 1996·Journal of Computer Assisted Tomography·C R MaurerJ M Fitzpatrick
Jun 18, 1999·Journal of Magnetic Resonance Imaging : JMRI·S LangloisM Revenu
Oct 31, 2000·Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology·T MizowakiM Hiraoka
Mar 10, 2001·Strahlentherapie und Onkologie : Organ der Deutschen Röntgengesellschaft ... [et al]·A FranssonR Pötter
Mar 10, 2001·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·N K Chen, A M Wyrwicz
Jan 1, 1992·IEEE Transactions on Medical Imaging·H Chang, J M Fitzpatrick

❮ Previous
Next ❯

Citations

Mar 28, 2012·Magnetic Resonance in Medical Sciences : MRMS : an Official Journal of Japan Society of Magnetic Resonance in Medicine·Masami GotoUNKNOWN Japanese Alzheimer's Disease Neuroimaging Initiative
May 31, 2013·Medical Physics·Norihide MaikusaUNKNOWN Japanese Alzheimer’s Disease Neuroimaging Initiative
Feb 13, 2014·Australasian Physical & Engineering Sciences in Medicine·Amy WalkerLois Holloway
Oct 16, 2008·The International Journal of Cardiovascular Imaging·Balázs RuzsicsHimanshu Gupta
May 6, 2015·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Dariya I MalyarenkoThomas L Chenevert
Jan 11, 2016·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Irvin TehJürgen E Schneider
Oct 21, 2015·NeuroImage·Jesper L R Andersson, Stamatios N Sotiropoulos
Dec 4, 2015·Medical Physics·Shengzhen TaoMatt A Bernstein
Oct 28, 2014·Methods of Information in Medicine·M GotoUNKNOWN Japanese Alzheimer’s Disease Neuroimaging Initiative
Jun 10, 2011·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Yiqun XueHee Kwon Song
Nov 23, 2012·Journal of Magnetic Resonance Imaging : JMRI·Ek T TanChristopher J Hardy
Jun 25, 2013·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Dariya I MalyarenkoThomas L Chenevert
Oct 10, 2014·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Shengzhen TaoMatt A Bernstein
Nov 20, 2015·International Journal of Radiation Oncology, Biology, Physics·Eric ParadisJames M Balter
Feb 11, 2015·Journal of Magnetic Resonance Imaging : JMRI·Dariya I Malkyarenko, Thomas L Chenevert
May 7, 2014·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Uten YarachOliver Speck
Jul 18, 2015·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Shengzhen TaoMatt A Bernstein
Jun 2, 2015·Frontiers in Neuroscience·Joerg MagerkurthNikolaus Weiskopf
Aug 16, 2016·Practical Radiation Oncology·Tyler M SeibertJona A Hattangadi-Gluth
Jun 16, 2017·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Nico PapinuttoUNKNOWN North American Imaging in Multiple Sclerosis Cooperative(NAIMS)
Mar 1, 2013·Stereotactic and Functional Neurosurgery·B S SpottiswoodeA Gretschel
Sep 27, 2018·Journal of Magnetic Resonance Imaging : JMRI·Ashley T TaoMatt A Bernstein
Mar 31, 2005·Physics in Medicine and Biology·Simon J DoranMartin O Leach
Sep 28, 2007·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Zoltan NagyRalf Deichmann
Dec 22, 2009·Physics in Medicine and Biology·K M GilbertR S Menon
Sep 19, 2019·Physics in Medicine and Biology·S DorschC P Karger
Aug 9, 2017·Journal of Computer Assisted Tomography·Masami GotoUNKNOWN Japanese Alzheimer’s Disease Neuroimaging Initiative
Feb 3, 2018·Physics in Medicine and Biology·Amir M OwrangiCarri K Glide-Hurst

❮ 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.