Results 1 to 10 of about 2,498,670 (400)

Magnetic Resonance Imaging [PDF]

European Neurology, 1989
All of the data published in the literature show that MR is more sensitive than CT in diagnosing cerebral ischemic lesions. This greater sensitivity is due to its ability to detect even the minimal changes in tissue water content which occur in the early phases of the infarct.
David San Martín
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Plaque Characteristics in Young Adults With Symptomatic Intracranial Atherosclerotic Stenosis: A Preliminary Study

Frontiers in Neurology, 2022
PurposeTo determine how intracranial vascular wall and atherosclerosis plaque characteristics differ between young and old adults with sICAS.MethodsEighty-four consecutive patients with sICAS who underwent high-resolution magnetic resonance imaging ...
Ling Li, Min Tang, Xuejiao Yan, Jie Gao, Niane Ma, Xiaorui Shi, Yaxin Niu, Yu Wen, Kai Ai, Xiaoyan Lei, Xiaoling Zhang   +10 more
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Static and dynamic changes of intrinsic brain local connectivity in internet gaming disorder

BMC Psychiatry, 2023
Background Studies have revealed that intrinsic neural activity varies over time. However, the temporal variability of brain local connectivity in internet gaming disorder (IGD) remains unknown. The purpose of this study was to explore the alterations of
Xiaoyu Niu, Xinyu Gao, Mengzhe Zhang, Jinghan Dang, Jieping Sun, Yan Lang, Weijian Wang, Yarui Wei, Jingliang Cheng, Shaoqiang Han, Yong Zhang   +10 more
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Dynamic Altered Amplitude of Low-Frequency Fluctuations in Patients With Major Depressive Disorder

Frontiers in Psychiatry, 2021
Background: Major depressive disorder (MDD) has demonstrated abnormalities of static intrinsic brain activity measured by amplitude of low-frequency fluctuation (ALFF).
Ruiping Zheng, Yuan Chen, Yu Jiang, Mengmeng Wen, Bingqian Zhou, Shuying Li, Yarui Wei, Zhengui Yang, Caihong Wang, Jingliang Cheng, Yong Zhang, Shaoqiang Han   +11 more
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Magnetic resonance imaging features of bile duct adenoma

Frontiers in Oncology, 2023
ObjectivesTo evaluate the magnetic resonance imaging (MRI) features of bile duct adenoma.MethodsThe data of 28 patients [with 32 pathologically confirmed bile duct adenomas, including 15 with malignant change (malignant group) and 17 without malignant ...
Mengyue Huang, Mengna Huang, Xuemei Gao, Yong Zhang, Jingliang Cheng, Jinxia Zhu, Caixia Li, Jingjing Liu   +7 more
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Assessment of Neuroprotective Effects of Low-Intensity Transcranial Ultrasound Stimulation in a Parkinson’s Disease Rat Model by Fractional Anisotropy and Relaxation Time T2∗ Value

Frontiers in Neuroscience, 2021
Background: Low-intensity transcranial ultrasound (LITUS) may have a therapeutic effect on Parkinson’s disease (PD) patients to some extent. Fractional anisotropy (FA) and relaxation time T2∗ that indicate the integrity of fiber tracts and iron ...
Yanchao Dong, Defeng Liu, Yuemei Zhao, Yi Yuan, Wenxi Wang, Shuo Wu, Xin Liang, Zhanqiu Wang, Lanxiang Liu   +8 more
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Evaluation of Amide Proton Transfer-Weighted Imaging for Risk Factors in Stage I Endometrial Cancer: A Comparison With Diffusion-Weighted Imaging and Diffusion Kurtosis Imaging

Frontiers in Oncology, 2022
BackgroundEndometrial cancer (EC) is one of the most common gynecologic malignancies in clinical practice. This study aimed to compare the value of diffusion-weighted imaging (DWI), diffusion kurtosis imaging (DKI), and amide proton transfer-weighted ...
Xingxing Jin, Ruifang Yan, Zhong Li, Gaiyun Zhang, Wenling Liu, Hongxia Wang, Meng Zhang, Jinxia Guo, Kaiyu Wang, Dongming Han   +9 more
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The role of histogram analysis in diffusion-weighted imaging in the differential diagnosis of benign and malignant breast lesions

BMC Medical Informatics and Decision Making, 2020
Background The present study aims to investigate the role of histogram analysis of intravoxel incoherent motion (IVIM) in the differential diagnosis of benign and malignant breast lesions.
Ya-Nan Jin, Yan Zhang, Jing-Liang Cheng, Xiao-Pan Zhang, Ying Hu, Xiao-Ning Shao   +5 more
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170 Nanometer Nuclear Magnetic Resonance Imaging using Magnetic Resonance Force Microscopy [PDF]

, 2002
We demonstrate one-dimensional nuclear magnetic resonance imaging of the semiconductor GaAs with 170 nanometer slice separation and resolve two regions of reduced nuclear spin polarization density separated by only 500 nanometers.
Barrett, Bozorth, Bruland, Bruland, Doran D Smith, Kent R Thurber, Lampel, Lee, Lee E Harrell, Leskowitz, Minard, Paget, Seeber, Sidles, Sidles, Slichter, Smith, Thurber, Thurber, Van Veenendaal, Zwanziger, Züger   +21 more
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Autonomous Magnetic Resonance Imaging [PDF]

Magnetic Resonance Imaging, 2020
AbstractAccess to Magnetic Resonance Imaging (MRI) across developing countries from being prohibitive to scarcely available. For example, eleven countries in Africa have no scanners. One critical limitation is the absence of skilled manpower required for MRI usage. Some of these challenges can be mitigated using autonomous MRI (AMRI) operation. In this
Ravi, Keerthi Sravan, Geethanath, Sairam
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