Showing 961 - 980 results of 1,065 for search '"CT scan"', query time: 0.08s Refine Results
  1. 961

    Evidence of Negative Effects of Defect Size and Older Patient Age by Quantitative CT-Based 3D Image Analysis in Ultraporous Beta-Tricalcium Phosphate Grafted Extremity Bone Defects... by Timothy A. Damron, Kenneth A. Mann

    Published 2018-01-01
    “…Twenty-one patients with CT scans at ≥1 year follow-up available for digital analysis (TCP=10, TCP w/BMA =11) form the study population. …”
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    Article
  2. 962

    Diagnostic Accuracy of Non-Contrast Magnetic Resonance Imaging in Diagnosing Pituitary Micro-Adenoma, Taking Histopathology as Gold Standard by Sehar Sarfraz, Tayyaba Ali, Pakeeza Shafiq, Zartashia Khan, Waqar Azeem, Ghazala Rasool, Ehsan Ul Haq

    Published 2025-01-01
    “…IRB/18/2024/01) included 121 patients presenting with severe headaches and focal brain lesions on CT scans at Doctors Hospital, Lahore from September 2024 to November 2024. …”
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  3. 963

    Differences in Clinical and Imaging Features between Asymptomatic and Symptomatic COVID-19 Patients by Xi Ma, Zhi-Yan Lu, Yan-Juan Qu, Li-Hong Xing, Yu Zhang, Yi-Bo Lu, Li Dong, Hong-Jun Li, Li Li, Xiao-Ping Yin, Chuan-Jun Xu

    Published 2022-01-01
    “…All patients underwent 4–6 CT scans over a period of 2–5 days. Results. The bulk of asymptomatic carriers who developed symptoms and most of the COVID-19 patients were older than 18 years of age with a decreased lymphocyte count, abnormal hepatic and renal function, and increased D-dimer and C-reactive protein. …”
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  4. 964

    Treatment of unstable pelvic fractures with double INFIX by Xu-Song Li, Jun-Le Wu, Liben Huang, Lin Ye, Jie-Feng Huang

    Published 2025-01-01
    “…Pre- and postoperative evaluations included standardised pelvic serial films and three-dimensional CT scans. Key observational indicators were fracture reduction quality (assessed using Matta’s criteria), fracture healing, functional recovery (evaluated with the Majeed function assessment criteria), and incidence of complications. …”
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  5. 965

    Effect of Porous Chitosan Microspheres Loaded with Platelet-Rich Plasma and Bone Marrow-Derived Mesenchymal Stem Cells on Regeneration of Tibia Defect by Qi Chen, Ziru Zhao, Guoyong Yin

    Published 2019-01-01
    “…MTT assay was used to detect the proliferative ability of BMSCs after hypoxia/reoxygenation (H/R) treatment and the proliferative ability of BMSCs loaded by PCMs; polymerase chain reaction (PCR) was used to detect the expression of alkaline phosphatase (ALP), type I collagen (Col I), and type II collagen (Col II) in BMSCs after hypoxia and in BMSCs induced by PRP-loaded PCMs; PCR was used to detect the expression of Runt-associated transcription factor 2 (Runx2) and osteocalcin (OC) in the newly generated bone tissue; micro-CT scanning was applied to measure the bone mineral density and bone volume of the newly generated bone tissue in rats. …”
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  6. 966

    Fuzzy Enhanced Kidney Tumor Detection: Integrating Machine Learning Operations for a Fusion of Twin Transferable Network and Weighted Ensemble Machine Learning Classifier by Ananya Ghosh, Jyotismita Chaki

    Published 2025-01-01
    “…This study tackles the crucial issue of kidney tumor detection using CT scans. The proposed approach leverages the power of image enhancement using fuzzy systems, deep learning, and machine learning for automated kidney tumor detection in CT images. …”
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    Article
  7. 967

    Dynamic Changes in Lung Function and Imaging in Patients with COVID-19 by Lingyan Ye, Bingyu Hu, Shuangxiang Lin, Meifang Chen, Yicheng Fang, Susu He

    Published 2022-01-01
    “…Lung function examinations and lung CT scans were performed at discharge and three months after discharge. …”
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  8. 968

    Mediators of monocyte chemotaxis and matrix remodeling are associated with mortality and pulmonary fibroproliferation in patients with severe COVID-19. by Sarah E Holton, Mallorie Mitchem, Hamid Chalian, Sudhakar Pipavath, Eric D Morrell, Pavan K Bhatraju, Jessica A Hamerman, Cate Speake, Uma Malhotra, Mark M Wurfel, Steven E Ziegler, Carmen Mikacenic

    Published 2024-01-01
    “…In a subset of patients who had CT scans during hospitalization (n = 75), we tested for associations between protein concentrations and radiographic features of fibroproliferation. …”
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  9. 969

    Dosimetric and Radiobiological Impact of Patient Setup Errors in Intensity-modulated Radiotherapy for Esophageal Cancer by Jia-Huan Cai MS, Xun Peng BMed, Jia-Yang Lu MS

    Published 2025-01-01
    “…Methods and materials This retrospective study with 56 patients in thermoplastic mask (TM) and vacuum bag (VB) groups utilized real setup-error (RSE) data from cone-beam CT scans to generate simulated setup-error (SSE) data following a normal distribution. …”
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  10. 970

    A Comparison of the Celiacomesenteric Trunk in the Caribbean with Global Prevalence Calculated by a Systematic Review by Shamir O. Cawich, Maurice Fortune, Rahul Deshpande, Michael Gardner, Neil Pearce, Peter Johnson, Vijay Naraynsingh

    Published 2022-01-01
    “…In this study, we evaluated all consecutive patients who had multiphase contrast-enhanced CT scans at two major referral centres in the Caribbean from August 30, 2017, to September 1, 2019. …”
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  11. 971

    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
    “…On PET/computed tomographic (CT) and SPECT/CT scans, subcutaneous A431-CCK2R tumors were clearly visualized with low uptake of sCCK8 peptides in the intestines. …”
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  12. 972

    Clinical evaluation of 3D PEEK implants for skull bone defects repair: a single center case serious by Mohamed Ahmed Elnaggar, Hossam Abdelhakim Elnoamany, Mohamed K. Eissa

    Published 2025-02-01
    “…All patients underwent preoperative CT scans for custom implant design using computer-aided design (CAD) software. …”
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  13. 973

    Generation of deep learning based virtual non-contrast CT using dual-layer dual-energy CT and its application to planning CT for radiotherapy. by Jungye Kim, Jimin Lee, Bitbyeol Kim, Sangwook Kim, Hyeongmin Jin, Seongmoon Jung

    Published 2024-01-01
    “…This paper presents a novel approach for generating virtual non-contrast planning computed tomography (VNC-pCT) images from contrast-enhanced planning CT (CE-pCT) scans using a deep learning model. Unlike previous studies, which often lacked sufficient data pairs of contrast-enhanced and non-contrast CT images, we trained our model on dual-energy CT (DECT) images, using virtual non-contrast CT (VNC CT) images as outputs instead of true non-contrast CT images. …”
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  14. 974

    Leiomyosarcomas of the inferior vena cava: diagnostic features on contrast-enhanced CT, ultrasonography and MRI by Xiaolin Xu, Shilei Zhao, Lifang Xue

    Published 2025-02-01
    “…Common clinical symptoms included abdominal pain, back pain, leg discomfort, abdominal distension, jaundice, and the presence of an abdominal mass. On CT scans, a large, lobulated, heterogeneous mass with progressive enhancement was typically seen in 13 of the 21 patients (61.9%). …”
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  15. 975

    Automatic Reproduction of Natural Head Position in Orthognathic Surgery Using a Geometric Deep Learning Network by Ji-Yong Yoo, Su Yang, Sang-Heon Lim, Ji Yong Han, Jun-Min Kim, Jo-Eun Kim, Kyung-Hoe Huh, Sam-Sun Lee, Min-Suk Heo, Hoon Joo Yang, Won-Jin Yi

    Published 2024-12-01
    “…<b>Methods</b>: To address these limitations, we developed a geometric deep learning network (NHP-Net) to automatically reproduce NHP from CT scans. A dataset of 150 orthognathic surgery patients was utilized. …”
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  16. 976

    The natural course of cystic pancreatic neuroendocrine tumours in MEN1 by Eline N M van Vliembergen, Carolina R C Pieterman, Annenienke C van de Ven, Arthur J A T Braat, Gerlof D Valk, Joanne M de Laat

    Published 2025-02-01
    “…The median follow-up was 5.1 years. [68Ga]Ga-DOTATOC PET/CT scans showed that both cystic and solid lesions demonstrated [68Ga]Ga-DOTATOC PET/CT uptake. …”
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  17. 977

    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
    “…Both 68Ga-PSMA-11 and 2-(3-(1-carboxy-5-((6-(18f)fluoro-pyridine-3-carbonyl)-amino)-pentyl)-ureido)-pentanedioic acid (18F-DCFPyL) PET/CT, which were performed for prostate cancer staging and re-staging in about 1 year interval, showed focal uptake in the primary prostate tumor as well as an intense focal lesion in L2, suggestive of bone metastasis. 18F-FDG PET/CT scans performed before and after PSMA PET/CT examinations showed no abnormal uptake related to oesophageal and/or B-CLL. …”
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  18. 978

    18F-FDG-PET/CT can be used to predict distant metastasis in hypopharyngeal squamous cell carcinoma by Shinsuke Suzuki, Satoshi Toyoma, Tomoe Abe, Tentaro Endo, Teppei Kouga, Yohei Kaswasaki, Takechiyo Yamada

    Published 2022-04-01
    “…Methods This study included 121 patients who underwent pretreatment FDG-PET/CT scanning and subsequent treatment for HPSCC. The SUVmax was measured via FDG-PET/CT. …”
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  19. 979

    Exploration of the diagnostic and prognostic roles of decreased autoantibodies in lung cancer by Ying Ye, Ying Ye, Yi Huang, Yi Huang, Jianbo Pan, Jianbo Pan

    Published 2025-01-01
    “…Diagnosing malignant small lung nodules (≤3cm) in CT scans remains a challenge in clinical practice.MethodsIn this study, we applied the HuProt array and the bioinformatics analysis to assess the diagnostic values of the decreased autoantibodies in lung cancers.ResultsIn total, 15 types of decreased autoantibodies were identified, and 6 of them were constructed into a predictive model for early lung cancer, reaching a sensitivity of 76.19% and a specificity of 55.74%. …”
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  20. 980

    IMAGINER 2—improving accuracy with augmented realIty navigation system during placement of external ventricular drains over Kaufman's, Keen's, Kocher's and Frazier's point by Martin Vychopen, Fabian Kropla, Dirk Winkler, Erdem Güresir, Ronny Grunert, Ronny Grunert, Johannes Wach

    Published 2025-01-01
    “…Punctures were performed freehand (Freehand group) and with AR assistance (AR group). Post-procedure CT scans were used to compare the actual catheter tip positions with the ideal positions. …”
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