Comparison of multi echo T2 relaxation and steady state approaches for myelin imaging in the central nervous system

Autor: Adam V. Dvorak, Emil Ljungberg, Irene M. Vavasour, Lisa Eunyoung Lee, Shawna Abel, David K. B. Li, Anthony Traboulsee, Alex L. MacKay, Shannon H. Kolind

Publikováno v: Scientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)

Abstract The traditional approach for measuring myelin-associated water with quantitative magnetic resonance imaging (MRI) uses multi-echo T2 relaxation data to calculate the myelin water fraction (MWF). A fundamentally different approach, abbreviate

Externí odkaz: https://doaj.org/article/72b25060dfcd4ad49c4b222ee0d958db

Rapid myelin water imaging for the assessment of cervical spinal cord myelin damage

Autor: Adam V. Dvorak, Emil Ljungberg, Irene M. Vavasour, Hanwen Liu, Poljanka Johnson, Alexander Rauscher, John L.K. Kramer, Roger Tam, David K.B. Li, Cornelia Laule, Laura Barlow, Hannah Briemberg, Alex L. MacKay, Anthony Traboulsee, Piotr Kozlowski, Neil Cashman, Shannon H. Kolind

Publikováno v: NeuroImage: Clinical, Vol 23, Iss , Pp - (2019)

Background: Rapid myelin water imaging (MWI) using a combined gradient and spin echo (GRASE) sequence can produce myelin specific metrics for the human brain. Spinal cord MWI could be similarly useful, but technical challenges have hindered routine a

Externí odkaz: https://doaj.org/article/42651d2ff59844fd8a9c6bb5f8fc8bc2

Motion corrected silent ZTE neuroimaging

Autor: Emil Ljungberg, Tobias C. Wood, Ana Beatriz Solana, Steven C. R. Williams, Gareth J. Barker, Florian Wiesinger

Publikováno v: Magnetic Resonance in Medicine. 88:195-210

To develop self-navigated motion correction for 3D silent zero echo time (ZTE) based neuroimaging and characterize its performance for different types of head motion.The proposed method termed MERLIN (Motion EstimationRetrospective correction Leverag

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::60cc002aa39875f017179f503e3b760c
https://doi.org/10.1002/mrm.29201

Silent zero TE MR neuroimaging: Current state-of-the-art and future directions

Autor: Emil Ljungberg, Ana Beatriz Solana, Fernando Zelaya, Tobias C. Wood, Steven Williams, Nikou L. Damestani, Gareth J. Barker, Florian Wiesinger, David J. Lythgoe

Publikováno v: Ljungberg, E, Damestani, N L, Wood, T C, Lythgoe, D J, Zelaya, F, Williams, S C R, Solana, A B, Barker, G J & Wiesinger, F 2021, ' Silent zero TE MR neuroimaging : Current state-of-the-art and future directions ', PROGRESS IN NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY, vol. 123, pp. 73-93 . https://doi.org/10.1016/j.pnmrs.2021.03.002

Magnetic Resonance Imaging (MRI) scanners produce loud acoustic noise originating from vibrational Lorentz forces induced by rapidly changing currents in the magnetic field gradient coils. Using zero echo time (ZTE) MRI pulse sequences, gradient swit

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c6a18b373f655588f1218d3b01c02778
https://doi.org/10.1016/j.pnmrs.2021.03.002

Myelin Water Fraction and Intra/Extracellular Water Geometric Mean T 2 Normative Atlases for the Cervical Spinal Cord from 3T MRI

Autor: Hanwen Liu, Adam V. Dvorak, Cornelia Laule, Jackie T Yik, Emil Ljungberg, Lisa Eunyoung Lee, David K.B. Li, Shannon H. Kolind, John L.K. Kramer, Anthony Traboulsee, Erin L. MacMillan, Laura Barlow

Publikováno v: Journal of Neuroimaging. 30:50-57

Background and purpose Acquiring and interpreting quantitative myelin-specific MRI data at an individual level is challenging because of technical difficulties and natural myelin variation in the population. To overcome these challenges, we used mult

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e907ae42fd05758fb295c38b5668c786
https://doi.org/10.1111/jon.12659