Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Megan E. Poorman"'
Autor:
Samuel D. Oberdick, Kalina V. Jordanova, John T. Lundstrom, Giacomo Parigi, Megan E. Poorman, Gary Zabow, Kathryn E. Keenan
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-13 (2023)
Abstract We have investigated the efficacy of superparamagnetic iron oxide nanoparticles (SPIONs) as positive T1 contrast agents for low-field magnetic resonance imaging (MRI) at 64 millitesla (mT). Iron oxide-based agents, such as the FDA-approved f
Externí odkaz:
https://doaj.org/article/53da39628a62492fa5af7c6d9556eda2
Autor:
Kalina V. Jordanova, Michele N. Martin, Stephen E. Ogier, Megan E. Poorman, Kathryn E. Keenan
Publikováno v:
Magnetic Resonance Materials in Physics, Biology and Medicine.
Objective To measure healthy brain $${T}_{1}$$ T 1 and $${T}_{2}$$ T 2 relaxation times at 0.064 T. Materials and methods $${T}_{1}$$ T 1 and $${T}_{2}$$ T 2 relaxation times were measured in vivo for 10 healthy volunteers using a 0.064 T magnetic re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2ffd98a318e4db246cd50021879fc1d6
https://doi.org/10.1007/s10334-023-01095-x
https://doi.org/10.1007/s10334-023-01095-x
Autor:
Prathyush Chirra, Jana G. Delfino, Nandita M. deSouza, Kathryn E. Keenan, Kalina V. Jordanova, Satish Viswanath, Megan E. Poorman, Akshay S. Chaudhari, Bettina Baessler, Jessica M. Winfield
Publikováno v:
Med Phys
Image quantitation methods including quantitative MRI, multiparametric MRI, and radiomics offer great promise for clinical use. However, many of these methods have limited clinical adoption, in part due to issues of generalizability, that is, the abi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2eb7566862fcbfaf735ea54f5b4a94d9
https://doi.org/10.1002/mp.15195
https://doi.org/10.1002/mp.15195
Publikováno v:
Soft Matter
We show that magnetic resonance imaging (MRI) can be used to visualize the spatiotemporal dynamics of iron oxide nanoparticle growth within a hydrogel network during in situ coprecipitation. The synthesis creates a magnetic nanoparticle loaded polyme
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f5937e44b84935f3749c7a8da9402fb0
https://doi.org/10.1039/d0sm01566k
https://doi.org/10.1039/d0sm01566k
Autor:
Michele N. Martin, Kathryn E. Keenan, Debra McGivney, Mark A. Griswold, Megan E. Poorman, Dan Ma, Vikas Gulani
Publikováno v:
Journal of Magnetic Resonance Imaging. 51:675-692
Magnetic resonance fingerprinting (MRF) is a powerful quantitative MRI technique capable of acquiring multiple property maps simultaneously in a short timeframe. The MRF framework has been adapted to a wide variety of clinical applications, but faces
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d7009e80928cb2f2a4857a6324ed3cd3
https://doi.org/10.1002/jmri.26836
https://doi.org/10.1002/jmri.26836
Publikováno v:
Magnetic Resonance in Medicine, 81(4), 2385. John Wiley and Sons Inc.
PURPOSE: To perform multi-echo water/fat separated proton resonance frequency (PRF)-shift temperature mapping. METHODS: State-of-the-art, iterative multi-echo water/fat separation algorithms produce high-quality water and fat images in the absence of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cba544711a42af653452c5dfd6371b1e
https://doi.org/10.1002/mrm.27567
https://doi.org/10.1002/mrm.27567
Publikováno v:
Magnetic Resonance in Medicine. 78:2299-2306
Purpose To improve the precision of proton resonance frequency-shift magnetic resonance thermometry near ablation probes by recovering near-probe image signals that are typically lost due to magnetic susceptibility-induced field distortions. Methods
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9e09711d4786d39aa0e951567f042b28
https://doi.org/10.1002/mrm.26634
https://doi.org/10.1002/mrm.26634
Autor:
Mohit Ganguly, Jeremy B. Ford, Hillel J. Chiel, E. Duco Jansen, Michael W. Jenkins, William A. Grissom, Megan E. Poorman
Background and objectives The objective of this study is to assess the hypothesis that the length of axon heated, defined here as block length (BL), affects the temperature required for thermal inhibition of action potential propagation applied using
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::37c2a21197da00c15beb238bdc0a636c
https://europepmc.org/articles/PMC6981060/
https://europepmc.org/articles/PMC6981060/
Autor:
Yun Jiang, Rasim Boyacioğlu, Nicole Seiberlich, Vikas Gulani, Kathryn E. Keenan, Megan E. Poorman, Mark A. Griswold, Dan Ma, Debra McGivney
Publikováno v:
Journal of magnetic resonance imaging : JMRI. 51(4)
Magnetic resonance fingerprinting (MRF) is a general framework to quantify multiple MR-sensitive tissue properties with a single acquisition. There have been numerous advances in MRF in the years since its inception. In this work we highlight some of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::68d10a47fe9fdadaf0b5cdd1472f67d3
https://pubmed.ncbi.nlm.nih.gov/31347226
https://pubmed.ncbi.nlm.nih.gov/31347226
Treating Epilepsy via Thermal Ablation: Initial Experiments With an MRI-Guided Concentric Tube Robot
Autor:
Robert J. Webster, Cindy Lin Liu, Yue Chen, Isuru S. Godage, Hong Yu, E. Bryn Pitt, Megan E. Poorman, Eric J. Barth, William A. Grissom, David B. Comber
Publikováno v:
2017 Design of Medical Devices Conference.
Epilepsy is a prevalent neurological disorder affecting 65 million people globally [1]. Anti-epileptic medications fail to provide effective seizure control for 30% of patients, placing them at a 7–17% risk of Sudden Unexplained Death in Epilepsy a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::18335a4537aa4e25adfe771d14bdb5bf
https://doi.org/10.1115/dmd2017-3408
https://doi.org/10.1115/dmd2017-3408