Showing 381 - 400 results of 472 for search '"positron"', query time: 0.05s Refine Results
  1. 381

    Diagnostic efficacy and necessity of 18F-FDG PET/CT in fever of unknown origin: insights from a retrospective cohort study by Xiaoman Yu, Shuang Wang, Na Du, Hongguang Zhao, Haiying Chen

    Published 2025-02-01
    “…BackgroundDespite advancements in medical examination equipment and techniques, fever of unknown origin (FUO) remains challenging in internal medicine.PurposeThis study evaluates the diagnostic efficacy and necessity of 18F-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) in patients with FUO.MethodsWe retrospectively analyzed the results of 18F-FDG PET/CT in a cohort of 284 patients with FUO admitted to the Department of Infection at the First Hospital of Jilin University between January 2018 and March 2024. …”
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  2. 382

    MRI and FDG PET/CT Findings for Borderline Brenner Tumor of the Ovary: A Case Report and Literature Review by Hiroki Matsutani, Go Nakai, Takashi Yamada, Kazuhiro Yamamoto, Masahide Ohmichi, Keigo Osuga

    Published 2020-01-01
    “…The imaging features of borderline Brenner tumor (BT) of the ovary are very limited, especially regarding apparent diffusion coefficient (ADC) value and 18F-fluorodeoxyglucose positron emission tomography (FDG-PET)/CT. We report a case of borderline BT in a 54-year-old woman with diffusion-weighted imaging (DWI) and FDG-PET/CT findings. …”
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  3. 383

    A Case of Tumour Twins: A Rare Presentation of Simultaneous Breast and Endometrial Malignancies by Sreenidhi Sreeram, Barathi Gunabooshanam, Vasugi Gramani Arumugam, Gouthaman

    Published 2024-12-01
    “…Magnetic Resonance Imaging (MRI) and Positron Emission Tomography (PET) imaging were also done which revealed a thickened endometrium with increased metabolic activity. …”
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  4. 384

    3D Fusion Framework for Infarction and Angiogenesis Analysis in a Myocardial Infarct Minipig Model by Xu Zhenzhen PhD, Bo Tao PhD, MD, Yu Li MSc, Jun Zhang PhD, Xiaochao Qu PhD, Feng Cao PhD, Jimin Liang PhD

    Published 2017-05-01
    “…In this study, a 3D fusion framework is designed to integrate coronary computed tomography (CT) angiography (CTA), 2-deoxy-2-[ 18 F]fluoro-D-glucose ([ 18 F]DG) positron emission tomography (PET)/CT, and [ 68 Ga]-1,4,7-triazacyclononane-1,4,7-triacetic acid-(Arg-Gly-Asp)2 ([ 68 Ga]-NOTA-PRGD2) PET/CT images of the myocardial infarction model in minipigs. …”
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  5. 385

    PET Study of Sphingosine-1-Phosphate Receptor 1 Expression in Response to Vascular Inflammation in a Rat Model of Carotid Injury by Hui Liu PhD, MD, Hongjun Jin PhD, Xuyi Yue PhD, Junbin Han PhD, Pamela Baum SRS, Dana R. Abendschein PhD, Zhude Tu PhD

    Published 2017-01-01
    “…Animals received a 60-minute micro-positron emission tomography (micro PET) scan with [ 11 C]TZ3321 at 72 hours after injury. …”
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  6. 386

    Radiochemistry and Preclinical PET Imaging of Ga-Desferrioxamine Radiotracers Targeting Prostate-Specific Membrane Antigen by Eleni Gourni PhD, Luigi Del Pozzo BSc, Mark Bartholomä PhD, Yvonne Kiefer BSc, Philipp T. Meyer MD, PhD, Helmut R. Maecke PhD, Jason P. Holland D.Phil

    Published 2017-10-01
    “…Pharmacokinetic profiles of 68 Ga-4 and 68 Ga-7 were assessed using positron-emission tomography (PET) in mice bearing subcutaneous LNCaP tumors. …”
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  7. 387

    Deficiency of orexin receptor type 1 in dopaminergic neurons increases novelty-induced locomotion and exploration by Xing Xiao, Gagik Yeghiazaryan, Fynn Eggersmann, Anna Lena Cremer, Heiko Backes, Peter Kloppenburg, Anne Christine Hausen

    Published 2025-01-01
    “…Spontaneous activity in home cages, anxiety, reward processing, and energy metabolism did not change. Positron emission tomography imaging revealed that Ox1R signaling in dopaminergic neurons affected distinct neural circuits depending on the stimulation mode. …”
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  8. 388
  9. 389

    Malignant Paraganglioma With Calvarial Metastases Presenting With Recurrent Catecholamine-Induced Cardiomyopathy by Beatrice A. Brumley, MD, Run Yu, MD, PhD, Shadfar Bahri, MD, Jane Rhyu, MD

    Published 2025-01-01
    “…Seven months postoperatively, gallium-68 dodecane tetraacetic acid–octreotate positron emission tomography/computed tomography showed no recurrence at the surgical site, stable occipital lesion, and additional skeletal metastases. …”
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  10. 390

    Complete metabolic response as early predictor of long-term efficacy after adoptive T cell therapy using tumor-infiltrating lymphocytes by Rikke Andersen, Troels Holz Borch, Eva Ellebaek, Inge Marie Svane, Helle Westergren Hendel, Kasper Madsen

    Published 2025-02-01
    “…In this study the predictive value of early metabolic response after TIL therapy is explored.Materials and methods: 60 patients treated with TIL therapy in 4 different clinical trials and with available [18F]2-fluoro-2-deoxy-d-glucose positron emission tomography-CT (FDG-PET/CT) scans at baseline and at least one follow-up scan 6–8 weeks and/or 12–16 weeks post-TIL infusion were included.Results: Obtaining complete metabolic response (CMR) was associated with significantly superior median overall survival (mOS) compared with not obtaining CMR (p<0.0001). …”
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  11. 391

    Susceptibility map-weighted MRI can distinguish tremor-dominant Parkinson’s disease from essential tremor by Sungyang Jo, Chong Hyun Suh, Sangjin Lee, Jihyun Lee, MyungKi Yoon, Hwon Heo, Woo Hyun Shim, Sang Joon Kim, Eung Yeop Kim, Sun Ju Chung

    Published 2025-01-01
    “…Abstract Distinguishing between Parkinson’s disease (PD) and essential tremor (ET) can be challenging sometimes. Although positron emission tomography can confirm PD diagnosis, its application is limited by high cost and exposure to radioactive isotopes. …”
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  12. 392

    B-CLL with negative 18F-FDG PET/CT and intensive solitary lesion on PSMA PET/CT mimicking prostate cancer bone metastases by Theresa Jung, Daniel Neureiter, Gregor Schweighofer-Zwink, Gundula Rendl, Christian Pirich, Mohsen Beheshti

    Published 2025-01-01
    “…Abstract Positron emission tomography/computed tomography (PET/CT) using prostate-specific membrane antigen (PSMA)-radioligands is currently suggested by several clinical guidelines for the assessment of prostate cancer (PCa) in various clinical settings. …”
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  13. 393

    Diagnostic and Management Pathways for Pulmonary Carcinoid Tumours in the United Kingdom: Results from the National Lung Neuroendocrine Tumour Pathway Project by Wasat Mansoor, Stuart Ferguson, Victoria Ross, Denis Talbot

    Published 2020-01-01
    “…Computed tomography of thorax, abdomen, and pelvis was the most commonly reported diagnostic tool (96% of respondents), and bone scans and gallium somatostatin receptor scintigraphy positron emission tomography (SRS PET) were the least commonly reported (30% and 37% of respondents, respectively). …”
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  14. 394

    Hyperandrogenism, Elevated 17-Hydroxyprogesterone and Its Urinary Metabolites in a Young Woman with Ovarian Steroid Cell Tumor, Not Otherwise Specified: Case Report and Review of t... by Felix C. K. Wong, Angela Z. Chan, W. S. Wong, Angel H. W. Kwan, Tracy S. M. Law, Jacqueline P. W. Chung, Jeffrey S. S. Kwok, Angel O. K. Chan

    Published 2019-01-01
    “…Transvaginal ultrasound and [18F]− fluorodeoxyglucose positron emission tomography–computed tomography (FDG PET–CT) enabled the localization of a right ovarian tumor. …”
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  15. 395

    Radiocobalt-Labeling of a Polypyridylamine Chelate Conjugated to GE11 for EGFR-Targeted Theranostics by Lorraine Gaenaelle Gé, Mathias Bogetoft Danielsen, Aaraby Yoheswaran Nielsen, Mathias Lander Skavenborg, Niels Langkjær, Helge Thisgaard, Christine J. McKenzie

    Published 2025-01-01
    “…In this context, pairing an EGFR-targeting peptide with the emerging theranostic pair comprising the Auger electron emitter cobalt-58m (<sup>58m</sup>Co) and the Positron Emission Tomography-isotope cobalt-55 (<sup>55</sup>Co) would be of great interest for creating novel radiopharmaceuticals for prostate cancer and glioblastoma theranostics. …”
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  16. 396

    Detection of Alzheimer Disease in Neuroimages Using Vision Transformers: Systematic Review and Meta-Analysis by Vivens Mubonanyikuzo, Hongjie Yan, Temitope Emmanuel Komolafe, Liang Zhou, Tao Wu, Nizhuan Wang

    Published 2025-02-01
    “…The included papers used ViT models for AD detection versus healthy controls based on neuroimaging data, and the included studies used magnetic resonance imaging and positron emission tomography. Pooled diagnostic accuracy estimates, including sensitivity, specificity, likelihood ratios, and diagnostic odds ratios, were derived using random-effects models. …”
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  17. 397

    Evaluating the correlation between pretreatment 18F-FDG PET/CT metabolic parameters and tumor-infiltrating lymphocyte levels in nonluminal breast cancer and impact on survival by Muge Tamam, Halim Ozcevik, Gamze Kulduk, Merve Nur Acar Tayyar, Gunduzalp Bugrahan Babacan

    Published 2025-01-01
    “…Background and ObjectivesThis study aims to evaluate the correlation between Tumor-Infiltrating Lymphocyte (TIL) levels and Fluorine-18 fluorodeoxyglucose (18F-FDG) metabolic parameters, including spleen and bone marrow FDG uptake and tumor heterogeneity in non-luminal breast cancers (NLBC), and to elucidate their association with survival outcomes.MethodsWe retrospectively analyzed data from 100 females with stage 2–4 NLBC who underwent pretreatment 18F-FDG Positron emission tomography-computed tomography (PET/CT). …”
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  18. 398

    Assessment of Tumor Response to Neoadjuvant Chemotherapy in Breast Cancer Using MRI and 18F FDG PET/CT by Reem Yusuf AlBuainain, Fatema Yusuf Bunajem, Hussain Adnan Abdulla

    Published 2025-01-01
    “…Magnetic resonance imaging (MRI) and positron emission tomography/computed tomography (PET/CT) have been widely used to monitor the response to NACT in breast cancer. …”
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  19. 399

    Whole-Body Biodistribution, Dosimetry, and Metabolite Correction of [C]Palmitate: A PET Tracer for Imaging of Fatty Acid Metabolism by Nana L. Christensen MLS, Steen Jakobsen PhD, Anna C. Schacht PhD, Ole L. Munk PhD, Aage K. O. Alstrup DVM, PhD, Lars P. Tolbod PhD, Hendrik J. Harms PhD, Søren Nielsen MD, PhD, Lars C. Gormsen MD, PhD

    Published 2017-10-01
    “…Introduction: Despite the decades long use of [ 11 C]palmitate positron emission tomography (PET)/computed tomography in basic metabolism studies, only personal communications regarding dosimetry and biodistribution data have been published. …”
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  20. 400

    AI-based automatic patient positioning in a digital-BGO PET/CT scanner: efficacy and impact by John A. Kennedy, Tala Palchan-Hazan, Zohar Keidar

    Published 2025-01-01
    “…Abstract Background A recently released digital solid-state positron emission tomography/x-ray CT (PET/CT) scanner with bismuth germanate (BGO) scintillators provides an artificial intelligence (AI) based system for automatic patient positioning. …”
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