Showing 341 - 360 results of 472 for search '"positron"', query time: 0.04s Refine Results
  1. 341

    Comparison of 18F-FDG, 18F-Fluoroacetate, and 18F-FEPPA for Imaging Liver Fibrosis in a Bile Duct-Ligated Rat Model by Chun-Yi Wu, Hsin-Hua Hsieh, Pei-An Chu, Wen-Hsiang Hong, Ting-Yu Chang, Chia-Fang Hsu, Siao-Ting Lin, Po-Hsun Su, Shin-Lei Peng

    Published 2021-01-01
    “…This study is aimed at assessing the significance of longitudinal positron emission tomography (PET) imaging with 18F-labeling tracers for assessing liver fibrosis in a rat model with bile duct ligation (BDL). …”
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    Article
  2. 342

    PET Quantification of Cerebral Oxygen Metabolism in Small Animals by Takashi Temma, Kazuhiro Koshino, Tetsuaki Moriguchi, Jun-ichiro Enmi, Hidehiro Iida

    Published 2014-01-01
    “…Since small animals such as rats are widely used to study various diseases including cerebral ischemia, cerebrovascular diseases, and neurodegenerative diseases, the development of a noninvasive in vivo measurement method of cerebral oxygen metabolic parameters such as oxygen extraction fraction (OEF) and cerebral metabolic rate of oxygen (CMRO2) as well as cerebral blood flow (CBF) and cerebral blood volume (CBV) has been a priority. Although positron emission tomography (PET) with 15O labeled gas tracers has been recognized as a powerful way to evaluate cerebral oxygen metabolism in humans, this method could not be applied to rats due to technical problems and there were no reports of PET measurement of cerebral oxygen metabolism in rats until an 15O-O2 injection method was developed a decade ago. …”
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  3. 343

    In Vitro and In Vivo Characterization of Three Ga- and In-Labeled Peptides for Cholecystokinin Receptor Imaging by Susan Roosenburg, Peter Laverman, Lieke Joosten, Annemarie Eek, Floris P.J.T. Rutjes, Floris L. van Delft, Otto C. Boerman

    Published 2012-09-01
    “…Biodistribution studies and single-photon emission computed tomography (SPECT) and positron emission tomography (PET) were performed at 1 hour postinjection. …”
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    Article
  4. 344

    Can Met-PET/CT Predict Sporadic Multiglandular Hyperparathyroidism? Report of a Case and Review of the Literature by Andreas Hillenbrand, Johannes Lemke, Doris Henne-Bruns, Ambros J. Beer, Vikas Prasad

    Published 2019-01-01
    “…We analyzed the potential of positron emission tomography/computed tomography (Met-PET/CT) to predict MGD. …”
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  5. 345

    Recurrent Thymic Carcinoma Treated With Median Sternotomy, Innominate Vein Replacement for Superior Vena Cava, and Iodide Implantation: A Case Report and Review of the Literature by Zhong‐zheng Chen, Wen‐dong Qu, Xing‐shu Zhang, Yong‐xiang Song

    Published 2025-01-01
    “…Diagnostic imaging, including positron emission tomography/computed tomography (PET/CT), revealed a malignant anterior mediastinal mass with possible metastasis. …”
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    Article
  6. 346

    Multimodal Imaging of Nonenhancing Glioblastoma Regions by Flóra John MD, Natasha L. Robinette MD, Alit J. Amit-Yousif MD, Edit Bosnyák MD, Geoffrey R. Barger MD, Keval D. Shah MD, Sandeep Mittal MD, Csaba Juhász MD, PhD

    Published 2019-11-01
    “…Background: Clinical glioblastoma treatment mostly focuses on the contrast-enhancing tumor mass. Amino acid positron emission tomography (PET) can detect additional, nonenhancing glioblastoma-infiltrated brain regions that are difficult to distinguish on conventional magnetic resonance imaging (MRI). …”
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    Article
  7. 347

    Review Analysis of the Association between the Prevalence of Activated Brown Adipose Tissue and Outdoor Temperature by Yung-Cheng Huang, Chien-Chin Hsu, Pei-Wen Wang, Yen-Hsiang Chang, Tai-Been Chen, Bi-Fang Lee, Nan-Tsing Chiu

    Published 2012-01-01
    “…Activated BAT is identifiable using F18-fluorodeoxyglucose positron emission tomography/computed tomography (F18-FDG PET/CT). …”
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    Article
  8. 348

    A case of subcutaneous metastatic malignant melanoma of the left medial ankle: a case report and review of literature by Lauren Workman, Lauren Fang, Martina Blazevic, Joanna Chen, Richard Simman

    Published 2024-12-01
    “…He later developed a subcutaneous nodule at the same site. Positron emission tomography scan results supported the histopathologic findings which demonstrated invasive melanoma centered in the subcutaneous tissue without an epidermal component. …”
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    Article
  9. 349

    Determination of $$\mathcal{C}\mathcal{P}$$ C P -violating HZZ interaction with polarised beams at the ILC by Cheng Li, Gudrid Moortgat-Pick

    Published 2025-01-01
    “…In this paper, we setup a scenario which assumes that the total cross-section is always fixed while $${\mathcal{C}\mathcal{P}}$$ C P -violation is varying, and such a scenario helps us to determine the intrinsic $${\mathcal{C}\mathcal{P}}$$ C P -mixing angle limit around $$|\xi _{\mathcal{C}\mathcal{P}}|\sim 0.03~{\operatorname {rad}}$$ | ξ C P | ∼ 0.03 rad with (90%, 40%) polarised electron-positron beams and 5  $$\hbox {ab}^{-1}$$ ab - 1 integrated luminosity. …”
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  10. 350

    The Number of Frames on ECG-Gated 18F-FDG Small Animal PET Has a Significant Impact on LV Systolic and Diastolic Functional Parameters by Christoph Eissler, Rudolf A. Werner, Paula Arias-Loza, Naoko Nose, Xinyu Chen, Martin G. Pomper, Steven P. Rowe, Constantin Lapa, Andreas K. Buck, Takahiro Higuchi

    Published 2021-01-01
    “…This study is aimed at investigating the impact of frame numbers in preclinical electrocardiogram- (ECG-) gated 18F-fluorodeoxyglucose (18F-FDG) positron emission tomography (PET) on systolic and diastolic left ventricular (LV) parameters in rats. …”
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    Article
  11. 351

    Detecting early cognitive deficits in preclinical Alzheimer’s disease using a remote digital multi-day learning paradigm by Roos J. Jutten, Daniel Soberanes, Cassidy P. Molinare, Stephanie Hsieh, Michelle E. Farrell, Aaron S. Schultz, Dorene M. Rentz, Gad A. Marshall, Keith A. Johnson, Reisa A. Sperling, Rebecca E. Amariglio, Kathryn V. Papp

    Published 2025-01-01
    “…Here, we examined BRANCH multi-day learning curves (MDLCs) in 167 cognitively unimpaired older adults (age = 74.3 ± 7.5, 63% female) with different amyloid-β (A) and tau (T) biomarker profiles on positron emission tomography. MDLC scores decreased across ascending biomarker groups, with the A + T- group performing numerically worse (β = –0.24, 95%CI[–0.55,0.07], p = 0.128) and the A + T+ group performing significantly worse (β = –0.58, 95%CI[–1.06,–0.10], p = 0.018) than the A-T- group. …”
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  12. 352

    Preliminary and Comparative Experiment Study Between F-Flurpiridaz and N-NHHO Myocardial Perfusion Imaging With PET/CT in Miniature Pigs by Jiao Wang MD, Shuai Li Mpharm, Tian-wen Liu BS, Jie-min Zhang MD, PhD, Yue Chen MD, Jian-ming Li MD, PhD, Wen-gui Xu MD, PhD

    Published 2020-08-01
    “…Conclusion: The results preliminaryly show that 18 F-FIurpiridaz is a promising positron MPI agent with good image quality, ability of accurately evaluating cardiac function, and also convenience for application.…”
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  13. 353

    Primary Hyperparathyroidism-Phosphaturic Mesenchymal Tumour: An Unusual Association and a Probable Syndrome by Gwendolyn Fernandes, Avanika, Gloria Khumanthem

    Published 2025-01-01
    “…A 68-Ga-DOTANOC 3D PET (Positron Emission Tomography) scan revealed a 4.1×3.2×2.5 cm DOTA avid mass in the right thigh. …”
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  14. 354
  15. 355

    Imaging Hepatocellular Carcinoma With Ga-Citrate PET: First Clinical Experience by Carina Mari Aparici MD, Spencer C. Behr MD, Youngho Seo PhD, R. Kate Kelley MD, Carlos Corvera MD, Kenneth T. Gao, Rahul Aggarwal MD, Michael J. Evans PhD

    Published 2017-09-01
    “…To this end, we conducted a patient study to determine whether HCC can be resolved using 68 Ga-citrate positron emission tomography (PET). One patient with recurrent HCC was injected with 300 MBq of 68 Ga-citrate and imaged with PET/CT 249 minutes post injection. …”
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    Article
  16. 356

    Change in pericardial fat volume in postmenopausal women with papillary thyroid cancer undergoing thyrotropin suppressive therapy by Yunkyung Jeon, Doohwa Kim, Mijin Kim, Bo Hyun Kim, Kyoungjune Pak, Jihyun Kim, Keunyoung Kim

    Published 2025-01-01
    “…Each volumetric measurements were performed using computed tomography (CT) scans using baseline and follow-up fluorine-18 fluorodeoxyglucose positron emission tomography/CT (18F-FDG PET/CT)s for 2-year follow up period in Pusan National University Hospital, South Korea. …”
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    Article
  17. 357

    A case report of successful treatment of advanced thymic squamous cell carcinoma with poor performance status using multimodal therapy by Xianhua Xu, Xiang Yan, Yang Qin, Dan Kou, Qi Huang, Qiongcheng Chen, Yejin Li

    Published 2025-01-01
    “…Computed tomography (CT) and positron emission tomography/computed tomography (PET/CT) scans demonstrated a significant mass in the chest, accompanied by metastasis to adjacent lymph nodes. …”
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    Article
  18. 358

    C-MCG: Synthesis, Uptake Selectivity, and Primate PET of a Probe for Glutamate Carboxypeptidase II (NAALADase) by Martin G. Pomper, John L. Musachio, Jiazhong Zhang, Ursula Scheffel, Yun Zhou, John Hilton, Atul Maini, Robert F. Dannals, Dean F. Wong, Alan P. Kozikowski

    Published 2002-04-01
    “…Our goal was to develop a probe for GCP II for use with positron emission tomography (PET). Radiosynthesis of 11 C–MeCys–C(O)–Glu or 11 C-( S )-2-[3-(( R )-1-carboxy-2-methylsulfanyl-ethyl)-ureido]-pentanedioic acid ( 11 C-MCG), an asymmetric urea and potent ( K i = 1.9 nM) inhibitor of GCP II, was performed by C-11 methylation of the free thiol. …”
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  19. 359

    Relationship between Ce3+ 5d1 level, conduction-band bottom, and shallow electron trap level in Gd3Ga5O12:Ce and Gd3Al1Ga4O12:Ce crystals studied via pump-probe absorption spectros... by Mamoru Kitaura, Heishun Zen, Shinta Watanabe, Hirokazu Masai, Kei Kamada, Kyoung-Jin Kim, Akira Yoshikawa, Jumpei Ueda

    Published 2025-02-01
    “…Analysis of the thermally stimulated luminescence (TSL) glow curve determined the trap depth of the electrons in Gd3Al1Ga4O12:Ce. Based on positron annihilation lifetime spectroscopy (PALS), the generation of electron traps was linked to the introduction of vacancy complexes or vacancy aggregates with a negative charge, namely nonstoichiometric compositions. …”
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  20. 360

    Brain and Brown Adipose Tissue Metabolism in Transgenic Tg2576 Mice Models of Alzheimer Disease Assessed Using F-FDG PET Imaging by Robert A. Coleman PhD, Christopher Liang BS, Rima Patel BS, Sarah Ali BS, Jogeshwar Mukherjee PhD

    Published 2017-04-01
    “…We report 18 F-fluoro-2-deoxyglucose ( 18 F-FDG) positron emission tomography (PET) imaging of brain and intrascapular brown adipose tissue (IBAT) in transgenic mice 2576 (Tg2576) and wild-type (WT) mice. …”
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