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Automated Measurement of Effective Radiation Dose by F-Fluorodeoxyglucose Positron Emission Tomography/Computed Tomography.
Tomography
December 2024
Department of Nuclear Medicine and Molecular Imaging, Ajou University School of Medicine, Suwon 16499, Republic of Korea.
Background/objectives: Calculating the radiation dose from CT in F-PET/CT examinations poses a significant challenge. The objective of this study is to develop a deep learning-based automated program that standardizes the measurement of radiation doses.
Methods: The torso CT was segmented into six distinct regions using TotalSegmentator.
Utility of F-Fluorodeoxyglucose Positron Emission Tomography in Evaluating Disseminated Nontuberculous Mycobacterial Infection in Patients With Anti-interferon-γ Autoantibodies.
Open Forum Infect Dis
December 2024
Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan.
Background: Managing disseminated nontuberculous mycobacterial (NTM) infection in patients with neutralizing anti-interferon-γ autoantibodies (AIGAs) poses substantial challenges due to the lack of established treatment guidance and predictive tools for clinical outcomes. In this study, we investigated the utility of F-fluorodeoxyglucose (2-[F]FDG) positron emission tomography (PET) in guiding treatment decisions, with a focus on its ability to predict rehospitalization outcomes.
Methods: We conducted a post hoc analysis of the first available 2-[F]FDG PET scans of patients with AIGAs and disseminated NTM infection from a prospective observational multicenter cohort.
Association of resting amygdalar activity with persistent atrial fibrillation mediated by right atrial inflammation activity on F-fluorodeoxyglucose positron emission tomography-computed tomography.
Quant Imaging Med Surg
December 2024
Department of Nuclear Medicine, The Third Affiliated Hospital of Soochow University, Changzhou, China.
Background: Recent studies have shown that resting amygdalar activity is associated with cardiovascular disease. Nevertheless, the underlying mechanisms that link resting amygdalar activity with persistent atrial fibrillation (PerAF) remain to be comprehensively delineated. We aimed to estimate the association between resting amygdalar activity, right atrium (RA) inflammatory activity, and PerAF.
View Article and Find Full Text PDFClinical scoring systems, molecular subtypes and baseline [F]FDG PET/CT image analysis for prognosis of diffuse large B-cell lymphoma.
Cancer Imaging
December 2024
Department of Nuclear Medicine, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huai'an, Jiangsu, China.
Diffuse large B-cell lymphoma (DLBCL) is a highly heterogeneous hematological malignancy resulting in a range of outcomes, and the early prediction of these outcomes has important implications for patient management. Clinical scoring systems provide the most commonly used prognostic evaluation criteria, and the value of genetic testing has also been confirmed by in-depth research on molecular typing. [F]-fluorodeoxyglucose positron emission tomography / computed tomography ([F]FDG PET/CT) is an invaluable tool for predicting DLBCL progression.
View Article and Find Full Text PDFA Tumor Volume Segmentation Algorithm Based on Radiomics Features in FDG-PET in Lung Cancer Patients, Validated Using Surgical Specimens.
Diagnostics (Basel)
November 2024
Department of Physics, University Koblenz, 56070 Koblenz, Germany.
Background: Although the integration of positron emission tomography into radiation therapy treatment planning has become part of clinical routine, the best method for tumor delineation is still a matter of debate. In this study, therefore, we analyzed a novel, radiomics-feature-based algorithm in combination with histopathological workup for patients with non-small-cell lung cancer.
Methods: A total of 20 patients with biopsy-proven lung cancer who underwent [F]fluorodeoxyglucose positron emission/computed tomography (FDG-PET/CT) examination before tumor resection were included.
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