Showing 1,541 - 1,560 results of 2,850 for search '"MRI"', query time: 0.06s Refine Results
  1. 1541

    Intensity-Dependent Effects of Acute Exercise on Executive Function by Aylin Mehren, Cecilia Diaz Luque, Mirko Brandes, Alexandra P. Lam, Christiane M. Thiel, Alexandra Philipsen, Jale Özyurt

    Published 2019-01-01
    “…This study investigated the acute effects of exercise at moderate and high intensities on executive functions in healthy adults, including functional MRI to examine the underlying neural mechanisms. …”
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  2. 1542
  3. 1543

    Study of dynamic brain function in irritable bowel syndrome via Hidden Markov Modeling by Chuan Jing, Tianci Liu, Qingzhou Li, Chuan Zhang, Baijintao Sun, Xuezhao Yang, Yutao You, Jixin Liu, Hanfeng Yang

    Published 2025-01-01
    “…The rs-fMRI data of all participants were analyzed using HMM to identify recurrent brain activity states that evolve over time during the resting state. …”
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  4. 1544
  5. 1545

    Langerhans cell histiocytosis in children: the value of ultrasound in diagnosis and follow-up by Jinjin Yang, Xiaohua Huang, Zhongtao Bao, Jing Xu, Huimei Huang, Hongjie Huang, Ling Chen

    Published 2025-01-01
    “…The percentage of LCH cases correctly identified of US (65.38%) was higher than that of X-ray (21.05%) (P = 0.026) for skeletal lesions, which was comparable to that of CT and MRI. The overall correctly identified percentage of US for LCH was not significantly different from that of other imaging modalities. …”
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  6. 1546

    Transcranial brain atlas based on photon measurement density function in a triple-parameter standard channel space by Lijiang Wei, Yang Zhao, Farui Liu, Yuanyuan Chen, Yilong Xu, Zheng Li, Chaozhe Zhu

    Published 2025-02-01
    “…Therefore, in the absence of individual sMRI data, PMDF-TBA can optimize optode montage design, enhance channel sensitivity in target brain regions, and assist in source localization for fNIRS data, thereby facilitating the application of fNIRS in neuroscience research.…”
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  7. 1547

    SPIO 标记下大鼠骨髓间充质干细胞生物学特性及 多向分化潜能及体外MR成像

    Published 2009-01-01
    “…【目的】 探讨超顺磁氧化铁纳米颗粒(SPIO)标记对骨髓间充质干细胞生物学特性和多向分化潜能的影响以及体外磁共振(MRI)成像的可行性,为移植干细胞活体MRI成像提供实验基础65377; 【方法】 采用梯度密度离心法和贴壁法获取大鼠骨髓间充质干细胞(BMSC),采用25 μg/mL SPIO联合0.75 μg/mL多聚赖氨酸(PLL)标记BMSC,比较标记和未标记MSC细胞活力65380;增值65380;细胞周期65380;凋亡和成骨65380;成脂多向分化能力;应用1.5T MR对不同数量级细胞分别进行T1WI65380; T2WI和T2*WI序列扫描65377; 【结果】 普鲁士兰染色显示SPIO(25 μg Fe/mL, 48 h)对细胞的标记率接近100%,细胞活力65380;增殖65380;周期和凋亡检测,均显示SPIO标记细胞与未标记细胞间无统计学差异(P > 0.05);成骨65380;成脂诱导显示,BMSC和标记BMSC均具备成骨65380;成脂分化能力;对不同数量级的SPIO标记BMSC行MR扫描,T1WI65380; T2WI和T2*WI能检测到的最小数量级细胞分别为2 × 104, 1 × 104, 0.5 × 104, 呈低信号65377; 【结论】 25 μg/mL SPIO联合0.75 μg/mL PLL能有效标记BMSC,不影响BMSC的活力65380;增值65380;细胞周期65380;凋亡和多向分化能力,1.5T MR示踪标记细胞可行,与T1WI和T2WI序列相比,T2*WI最敏感65377;…”
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  8. 1548
  9. 1549

    Anatomical Covariance Analysis: Detection of Disrupted Correlation Network Related to Clinical Trait Fatigue in Multiple Sclerosis: A Pilot Study by Rosalia Dacosta-Aguayo, Glenn Wylie, John DeLuca, Helen Genova

    Published 2020-01-01
    “…Trait and state fatigue, cognitive status, and structural MRI were assessed in 27 PwMS. PwMS were stratified into nonclinical fatigue (nF-MS, FSS≤4.0) (n=10) and clinical fatigue (F-MS, FSS≥5.0) (n=10). …”
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  10. 1550

    Ironing out differences in attenuation and blooming artifact in acute stroke thrombi by Aglae Velasco Gonzalez, Dennis Görlich, Boris Buerke, Cristina Sauerland, Norbert Meier, Manfred Fobker, Ray McCarthy, Astrid Jeibmann, Walter Heindel, Andreas Faldum, Harald Kugel

    Published 2025-01-01
    “…Non-contrast CT and a susceptibility-weighted MRI sequence were used for imaging. The study found that RBC content correlated more accurately than iron content with clot attenuation on CT. …”
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  11. 1551

    Squared diffusion-weighted imaging for improving the detection of clinically significant prostate cancer by Birte Valentin, Lars Schimmöller, Matthias Boschheidgen, Tim Ullrich, Thomas Andreas Thiel, Alexandra Ljimani, Jan Philipp Radtke, Thomas Benkert, Peter Albers, Gerald Antoch, Hans-Jörg Wittsack, Michael Quentin

    Published 2025-01-01
    “…DWI post-processing was performed on 30 patients (median age 67 years, prostate specific antigen 8.0 ng/ml) with PC and clear MRI findings (PI-RADS 4 and 5). Multiparametric MRI was performed at 3 Tesla. …”
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  12. 1552

    Vertebral level in pregnancy according to the posterior superior iliac spine: an observational study by Ping Li, Dong Luo, Haibo Qu, Xuesheng Li, Linli Luo

    Published 2024-12-01
    “…Marker capsules were then affixed to the vertex of PSIS-line-based triangle and PSIS line, and MRI was performed with participants in the supine position. …”
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  13. 1553

    Study on Lesion Assessment of Cerebello-Thalamo-Cortical Network in Wilson’s Disease with Diffusion Tensor Imaging by Anqin Wang, Hongli Wu, Chunsheng Xu, Lanfeng Tang, Jaeyoun Lee, Min Wang, Man Jiang, Chuanfu Li, Qi Lu, Chunyun Zhang

    Published 2017-01-01
    “…This article aimed to assess lesions in cerebello-thalamo-cortical network with an advanced technique of diffusion tensor imaging (DTI) in WD. 35 WD patients and 30 age- and sex-matched healthy volunteers were recruited to accept diffusion-weighted images with 15 gradient vectors and conventional magnetic resonance imaging (MRI). The DTI parameters, including fractional anisotropy (FA) and mean diffusion (MD), were calculated by diffusion kurtosis estimator software. …”
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  14. 1554

    In Vivo Structural and Functional Abnormalities of the Striatums Is Related to Decreased Astrocytic BDNF in Itpr2-/- Mice Exhibiting Depressive-Like Behavior by Shanmei Zeng, Kai Liu, Jingyu Zhang, Chunhui Chen, Yihua Xu, Yulan Wu, Yanjia Deng, Xuegang Sun, Ge Wen, Linlin Jing

    Published 2020-01-01
    “…First, behavioral tests, structural magnetic resonance imaging (MRI), and resting-state functional MRI were performed on Itpr2-/- mice and matched healthy controls. …”
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  15. 1555

    Clinical characteristics and treatment outcomes of patients with insulinoma–a single center's experience of 76 cases over a 10-year period by Wei Li, Yali Cheng, Qingyong Ma, Zheng Wu, Zheng Wang

    Published 2025-01-01
    “…The average time from symptom onset to diagnosis of insulinoma was 33.4 month. When CT combined with MRI was used, the diagnostic rate was as high as 96.87 %. …”
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  16. 1556

    Unusual Presentation of Leiomyoma in the Hindfoot by Abdullah Zaher, Jaouad Yasser, Daniel Badaro, Noureddine Sekkach

    Published 2024-01-01
    “…It was diagnosed by the radiologist on MRI as a probable schwannoma. The patient underwent surgical excision of this mass which turned out to be a leiomyoma on pathology report. …”
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  17. 1557

    Neuroinvasive Cryptococcosis in an Immunocompetent Patient with a Negative Spinal Fluid Cryptococcus Antigen by Rocio C. Garcia-Santibanez, Veenu Gill, Stanley Yancovitz, DeWitt Pyburn

    Published 2015-01-01
    “…58-year-old man presented with headache, nausea, vomiting, and gait disturbance. Brain MRI showed meningeal enhancement and herniation. …”
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  18. 1558

    Lhermitte Sign as a Presenting Symptom of Thoracic Spinal Pathology: A Case Study by Adam Hills, Mazen Al-Hakim

    Published 2015-01-01
    “…There was no history of trauma or other inciting events within the 2 weeks prior to presentation. Thoracic MRI at this visit showed a three-column fracture at T11-T12. …”
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  19. 1559

    Paracolpium Leiomyoma Misdiagnosed as Endometriosis: Case Report and Surgical Technique of a Laparoscopic Approach by Nilton de Nadai Filho, Claudio Peixoto Crispi Junior, Marlon de Freitas Fonseca

    Published 2022-01-01
    “…During the gynecological examination, a nodule in the left lateral vaginal fornix was palpable. The MRI showed a hypointense nodular lesion in the left paracolpium described as an endometriosis nodule. …”
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  20. 1560

    Rod-Shaped Magnetite Nano/Microparticles Synthesis at Ambient Temperature by Balaprasad Ankamwar, Ashwini Thorat

    Published 2013-01-01
    “…This economical synthesis route is scalable, and Fe3O4 particles can be exploited for various applications such as MRI contrast enhancement, biodiseperations, Ni-Fe batteries, and as a catalyst.…”
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