Showing 941 - 960 results of 1,065 for search '"CT scan"', query time: 0.07s Refine Results
  1. 941

    A systematic review of neurological symptoms and brain abnormalities in SARS-CoV-2 infections by Daniel Montoya, Jacobo Albert, Sarah Lopez-Martin

    Published 2023-08-01
    “…Parallel to these neurological symptoms, white matter hyperintensities were the most frequent finding with MRI brain scanning, while hypodensities accounted for most of the lesions described with CT scanning. There was a significant occurrence of hemorrhages and microbleeds, with a prevalence of multifocal intracerebral bleeding patterns in all cerebrum and cerebellum lobes. …”
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  2. 942

    Determining anatomically-safe corridors for placement of lateral mass screws in the first cervical vertebra of the Emirati population – a CT study by Dineshwary Suresh, Nerissa Naidoo, Rashid AlSharhan, Usama Al Bastaki, Jeyaseelan Lakshmanan, Baylis Vivek Joseph, Ivan James Prithishkumar

    Published 2025-01-01
    “…The objective of this study was to describe ideal screw dimensions, precise entry points, safe bony corridors, and ideal trajectories for placement of lateral mass screws in the Emirati population. CT scans of 160 Emirati patients (> 18 years) were studied and variables relevant to lateral mass screw fixation were measured. …”
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  3. 943

    Comparative Analysis of Edge Detection Operators Using a Threshold Estimation Approach on Medical Noisy Images with Different Complexities by Vladimir Maksimovic, Branimir Jaksic, Mirko Milosevic, Jelena Todorovic, Lazar Mosurovic

    Published 2024-12-01
    “…This study focuses on medical images from three distinct datasets: retinal images, brain tumor segmentation, and lung segmentation from CT scans. The importance of noise analysis is heightened in medical imaging, as noise can significantly obscure the critical features and potentially lead to misdiagnoses. …”
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  4. 944

    Spontaneous tumor regression following COVID-19 vaccination by Hui Dai, Renata Ferrarotto, Myrna Godoy, Diana Bell, Shiaw-Yih Lin, Daniel J McGrail, Luana Guimaraes de Sousa, Kaiyi Li, Mario L Marques-Piubelli, Cipriano Gonzalez, Sammy Ferri-Borgogno, Jared Burks

    Published 2022-03-01
    “…Highly multiplexed imaging mass cytometry showed that the postvaccination lung metastasis samples had remarkable immune cell infiltration, including CD4+ T cells, CD8+ T cells, natural killer cells, B cells, and dendritic cells, which contrasted with very low levels of these cells in the prevaccination primary tumor and lung metastasis samples. CT scans obtained 3, 6, and 9 months after the second vaccine dose demonstrated persistent tumor shrinkage (50%, 67%, and 73% reduction, respectively), suggesting that vaccination stimulated anticancer immunity. …”
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  5. 945

    Desmoplastic Small Round Cell Tumor of Stomach by Ahmed Abu-Zaid, Ayman Azzam, Asma AlNajjar, Hussa Al-Hussaini, Tarek Amin

    Published 2013-01-01
    “…A chest, abdominal, and pelvic contrast-enhanced computed tomography (CT) scans showed a 3.8 × 7.2 × 8.7 cm ill-defined mass, involving gastric fundus and extending into gastric cardia and lower gastroesophageal junction. …”
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  6. 946

    Can CT Image Reconstruction Parameters Impact the Predictive Value of Radiomics Features in Grading Pancreatic Neuroendocrine Neoplasms? by Florent Tixier, Felipe Lopez-Ramirez, Alejandra Blanco, Mohammad Yasrab, Ammar A. Javed, Linda C. Chu, Elliot K. Fishman, Satomi Kawamoto

    Published 2025-01-01
    “…However, variations in reconstruction parameters can impact the predictive value of radiomics. 127 patients with histopathologically confirmed PanNENs underwent CT scans with filtered back projection (B20f) and iterative (I26f) reconstruction kernels. 3190 radiomic features were extracted from tumors and pancreatic volumes. …”
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    Article
  7. 947

    Marginal and Internal Adaptation Evaluation of Dental Composites Using Micro-CT by Adrian Tudor Stan, Laura Cîrligeriu, Laura Idorași, Meda Lavinia Negruțiu, Cosmin Sinescu, Daniela Maria Pop, Tareq Hajaj, Şerban Talpoș, Mihai Romînu

    Published 2019-01-01
    “…A curing lamp (Kerr Demi Ultra) was used with different curing times. Micro-CT scanning was performed by using Nikon XTH 225ST to reveal any defects in adaptation or gaps at the tooth restoration interface. …”
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  8. 948

    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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  9. 949

    Diagnostic Performance of Deep Learning Applications in Hepatocellular Carcinoma Detection Using Computed Tomography Imaging by Enes Şahin, Ozan Can Tatar, Mehmet Eşref Ulutaş, Sertaç Ata Güler, Turgay Şimşek, Nihat Zafer Utkan, Nuh Zafer Cantürk

    Published 2025-02-01
    “…Conclusion: The implementation of the YOLO architecture for detecting HCC in CT scans has shown substantial promise, indicating that DL models could soon become a standard tool in oncological diagnostics. …”
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  10. 950

    Application of Artificial Intelligence in Radiological Image Analysis for Pulmonary Disease Diagnosis: A Review of Current Methods and Challenges by Karolina Zalewa, Joanna Olszak, Wojciech Kapłan, Dominika Orłowska, Lidia Bartoszek, Marta Kaus, Natalia Klepacz

    Published 2025-01-01
    “…CNNs excel in processing raw image data and identifying hierarchical features, surpassing traditional methods in diagnosing lung diseases from radiographs and CT scans. AI systems demonstrate exceptional accuracy in detecting pneumonia, tuberculosis, and lung cancer, providing rapid, consistent results, particularly valuable in resource-limited settings. …”
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  11. 951

    Arctiin alleviates the progression of osteoarthritis by regulating the cholesterol metabolic pathway by Jiale Mai, Jiacong Xiao, Yanhuai Ma, Dawei Gong, Jianliang Li

    Published 2025-01-01
    “…An OA rat model was employed for in vivo evaluations through histological assessments and micro-CT scanning. ARC reversed IL-1β-induced upregulation of MMP3, MMP13, and COX-2 and the downregulation of collagen II and SOX9. …”
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  12. 952

    PEEK Cages versus PMMA Spacers in Anterior Cervical Discectomy: Comparison of Fusion, Subsidence, Sagittal Alignment, and Clinical Outcome with a Minimum 1-Year Follow-Up by Jan-Helge Klingler, Marie T. Krüger, Ronen Sircar, Evangelos Kogias, Christoph Scholz, Florian Volz, Christian Scheiwe, Ulrich Hubbe

    Published 2014-01-01
    “…Bony fusion, subsidence, and sagittal alignment were retrospectively assessed in CT scans and radiographs at follow-up. Clinical outcome was measured using the VAS, NDI, and SF-36. …”
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  13. 953

    Integrating manual annotation with deep transfer learning and radiomics for vertebral fracture analysis by Jing Wang, Zhirui Dong, Huanxin He, Zhiyang Gao, Yukai Huang, Guangcheng Yuan, Libo Jiang, Mingdong Zhao

    Published 2025-02-01
    “…MRI categorized VCFs. 3D regions of interest (ROIs) from CT scans underwent feature extraction and DTL modeling. …”
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  14. 954

    Relationships between Composition of Major Fatty Acids and Fat Distribution and Insulin Resistance in Japanese by Chikako Fujii, Toshihide Kawai, Koichiro Azuma, Yuko Oguma, Fuminori Katsukawa, Hiroshi Hirose, Kumiko Tanaka, Shu Meguro, Hideo Matsumoto, Hiroshi Itoh

    Published 2017-01-01
    “…Metabolic parameters and visceral and subcutaneous fat areas as determined by CT scanning at the umbilical level were measured. Glucose tolerance test (GTT) was performed by administering 75 g glucose orally. …”
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  15. 955

    Estimating Maxillary Sinus Volume Using Smartphone Camera by Christoforos Meliadis, Emily Feng, Ezekiel Johnson, Wendy Zhu, Paramesh Gopi, Vivek Mohan, Peter H. Hwang, Jacob Johnson, Bryant Y. Lin

    Published 2025-01-01
    “…<italic>Conclusions:</italic> This method aligns with the growing focus on telemedicine, presenting significant reductions in healthcare costs and radiation exposure from CT scans. It marks a substantial advancement in otolaryngology and maxillofacial surgery, showcasing the integration of smartphone technology in medical diagnostics and opening avenues for innovative, patient-friendly, and cost-effective healthcare solutions.…”
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  16. 956

    Virtual 3D reconstruction of complex congenital cardiac anatomy from 3D rotational angiography by Ernesto Mejia, Shannon Sweeney, Jenny E. Zablah

    Published 2025-01-01
    “…Abstract Background Despite advancements in imaging technologies, including CT scans and MRI, these modalities may still fail to capture intricate details of congenital heart defects accurately. …”
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  17. 957

    Image-guided orbital surgery: a preclinical validation study using a high-resolution physical model by Andrew Dickson, Kealan McElhinney, Conor Murphy, Rizwana I Khan, Ronan P Kileen, Donncha F O’Brien

    Published 2024-05-01
    “…Five high-resolution 3D-printed model skulls were created using CT scans of five anonymised patients with an orbital tumour that previously had a successful orbital biopsy or excision. …”
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  18. 958

    Which Groups of Children Are at More Risk of Fatality during COVID-19 Pandemic? A Case-Control Study in Yazd, Iran by Behnam Shafaei, Zahra Nafei, Mehran Karimi, Nasrin Behniafard, Farimah Shamsi, Masoud Faisal, Amir Pasha Amel Shahbaz, Elahe Akbarian

    Published 2023-01-01
    “…Furthermore, 27.5% of survived patients had normal chest CT scans, which was a statistically significant difference compared to the deceased patients (P: 0.031). …”
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  19. 959

    Morphometric analysis of internal auditory canal using CT imaging: An observational study in South Indian adult population by Judica Sheryl, Senthil Ganesh P. Kannappan

    Published 2024-12-01
    “…The study included subjects aged between 25 and 86 years who underwent temporal computed tomography (CT) scans revealing characteristics of the IAC. Imaging was obtained from the supraorbitomeatal plane with the subjects in a designated head support position. …”
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  20. 960

    Factors Associated With Multi-Drug Resistant Organisms Among Bronchiectasis Patients: A Retrospective Study of Bronchiectasis Patients in Jordan by Al Oweidat K, Toubasi AA, Khraisat FA, Al-Sayegh TN, Al-Harasis LM, Albtoosh AS

    Published 2025-01-01
    “…The diagnosis of bronchiectasis was established through lung Computerized Tomography (CT) scans and clinical symptom assessment.Results: The study encompassed 235 patients, revealing a notably higher occurrence of MDROs among non-cystic fibrosis patients compared to their counterparts (P-value=0.001). …”
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