Results 41 to 50 of about 3,904 (188)

Imaging the Centromedian Thalamic Nucleus Using Quantitative Susceptibility Mapping

Frontiers in Human Neuroscience, 2020
The centromedian (CM) nucleus is an intralaminar thalamic nucleus that is considered as a potentially effective target of deep brain stimulation (DBS) and ablative surgeries for the treatment of multiple neurological and psychiatric disorders.
Jun Li, Yufei Li, Lorenzo Gutierrez, Wenying Xu, Yiwen Wu, Chunlei Liu, Chunlei Liu, Dianyou Li, Bomin Sun, Chencheng Zhang, Hongjiang Wei   +10 more
doaj   +1 more source

Quantifying Subsurface Weak in‐Plane Magnetization of Mixed Phase BiFeO3 by Scanning Nitrogen Vacancy Magnetometry

Advanced Functional Materials, EarlyView.
We use scanning nitrogen vacancy magnetometry to directly image the weak in‐plane magnetic moments in mixed phase BiFeO3 at the nanoscale and quantify the local magnetic moments to be 18.8±2.0 μB/nm2 in the rhombohedral‐like phase and 1.5±0.6 μB/nm2 in the well‐known non‐magnetic tetragonal‐like phase.
Lei Wang, Zhewen Xu, Yuwen Xu, Björn Josteinsson, Simon Josephy, Dawei Zhang, Yunlong Sun, Heung‐Sik Park, Jihun Kim, Kanghyun Chu, Kyung Song, Danyang Wang, Chan‐Ho Yang, Andrea Morales, Jan Seidel   +14 more
wiley   +1 more source

Quantitative Susceptibility Mapping and Free Water Imaging of Substantia Nigra in Parkinson’s Disease

Journal of Parkinson’s Disease, 2022
Background: The utility of imaging methods to detect iron content in the substantia nigra pars compacta (SNc) and free water imaging in the posterior substantia nigra (pSN) has the potential to be imaging markers for the detection of Parkinson’s disease (
Dongling Zhang, Junye Yao, Junyan Sun, Qiqi Tong, Silei Zhu, Junling Wang, Lili Chen, Jinghong Ma, Hongjian He, Tao Wu   +9 more
doaj   +1 more source

Epileptogenic lesions in the Australian epilepsy project: A harmonized 3‐T magnetic resonance imaging protocol and its diagnostic yield

Epilepsia, EarlyView.
Abstract Objective Detection of epilepsy‐causing structural brain lesions on magnetic resonance imaging (MRI) is critical for diagnosis, prognosis, and treatment planning in people with epilepsy. We aimed to establish an epilepsy‐directed multisite harmonized 3‐T MRI acquisition protocol for the Australian Epilepsy Project (AEP) and describe the ...
David N. Vaughan, David F. Abbott, Amanda Anderson, Greg Fitt, Suyi Ooi, Heath Pardoe, Donna Parker, Yuliya Perchyonok, Eric Pierre, Chris Kokkinos, Robert E. Smith, Michael Stewart, Bahman Tahayori, Chris Tailby, Graeme D. Jackson, the Australian Epilepsy Project Investigators, Zanfina Ademi, Patrick Kwan, Karen Oliver, Mangor Pedersen   +19 more
wiley   +1 more source

Second‐trimester multimetabolite panel for early preeclampsia rule‐out

International Journal of Gynecology &Obstetrics, EarlyView.
Abstract Objective We aimed to establish a high‐sensitivity, multimetabolite rule‐out model for the development of preeclampsia (PE), prioritizing minimizing false negatives to exclude low‐risk individuals from intensive surveillance confidently. Methods In this prospective, nested case–control study, maternal serum samples were collected between 20+0 ...
Matthews Silva Martins, Julyane N. S. Kaihara, Diego Fortes Salgueiro, Viviane Cunha Cardoso, Silvana Maria Quintana, Ricardo Carvalho Cavalli, Valerio Garrone Barauna, Valeria Cristina Sandrim   +7 more
wiley   +1 more source

Direct Targeting of the Anterior Nucleus of the Thalamus via 3 T Quantitative Susceptibility Mapping

Frontiers in Neuroscience, 2021
Objective: Deep brain stimulation (DBS) of the anterior nucleus of the thalamus (ANT) is a potentially effective, minimally invasive, and reversible method for treating epilepsy.
Kaijia Yu, Zhiwei Ren, Tao Yu, Xueyuan Wang, Yongsheng Hu, Song Guo, Jianyu Li, Yongjie Li   +7 more
doaj   +1 more source

Association Between Deep Gray Matter Iron Deposition Dysregulation and Cognitive Performance in Type 2 Diabetes Mellitus Patients: A Quantitative Susceptibility Mapping Study

Journal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Background Type 2 diabetes (T2DM) heightens cognitive impairment risk, yet the mechanisms remain unclear. Hyperglycemia‐induced iron dysregulation in deep gray matter (DGM) nuclei may be a crucial mechanism. Purpose To investigate DGM iron deposition in T2DM using Quantitative Susceptibility Mapping (QSM) and determine its association with ...
Kun Wang, Jiahe Wang, Ziyu Diao, Xin Tan, Shijun Qiu, Jie An   +5 more
wiley   +1 more source

Effects of Motion in Ultrashort Echo Time Quantitative Susceptibility Mapping for Musculoskeletal Imaging

Journal of Imaging
Quantitative susceptibility mapping (QSM) is a powerful magnetic resonance imaging (MRI) technique for assessing tissue composition in the human body. For imaging short-T2 tissues in the musculoskeletal (MSK) system, ultrashort echo time (UTE) imaging ...
Sam Sedaghat, Jinil Park, Eddie Fu, Fang Liu, Youngkyoo Jung, Hyungseok Jang   +5 more
doaj   +1 more source

Magnetic resonance imaging (MRI) of pharmacological ascorbate-induced iron redox state as a biomarker in subjects undergoing radio-chemotherapy

Redox Biology, 2021
Pharmacological ascorbate (P-AscH-) combined with standard of care (SOC) radiation and temozolomide is being evaluated in a phase 2 clinical trial (NCT02344355) in the treatment of glioblastoma (GBM).
Cameron M. Cushing, Michael S. Petronek, Kellie L. Bodeker, Sandy Vollstedt, Heather A. Brown, Emyleigh Opat, Nancy J. Hollenbeck, Thomas Shanks, Daniel J. Berg, Brian J. Smith, Mark C. Smith, Varun Monga, Muhammad Furqan, Matthew A. Howard, Jeremy D. Greenlee, Kranti A. Mapuskar, Joel St-Aubin, Ryan T. Flynn, Joseph J. Cullen, Garry R. Buettner, Douglas R. Spitz, John M. Buatti, Bryan G. Allen, Vincent A. Magnotta   +23 more
doaj   +1 more source

Amyloid‐β–Related Cortical Susceptibility Alterations in Individuals Under Assessment for Alzheimer's Disease: A χ‐Separation Study

Journal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Background Assessment of amyloid‐β (Aβ) burden and associated iron deposition and neurodegeneration is important for Alzheimer's disease (AD) management. Although quantitative susceptibility mapping (QSM) detects iron and myelin changes, conventional metrics suffer from signal cancelation between paramagnetic and diamagnetic components ...
Hiroyuki Tatekawa, Tatsushi Oura, Akitoshi Takeda, Ayako Omori, Natsuko Atsukawa, Shu Matsushita, Daisuke Horiuchi, Hirotaka Takita, Yasuhito Mitsuyama, Yoshihito Ban, Taro Shimono, Josef Pfeuffer, Daiju Ueda, Yoshiaki Itoh, Yukio Miki   +14 more
wiley   +1 more source