Unlabelled: Patients with end-stage renal disease undergoing maintenance hemodialysis (MHD) are highly prone to infections. The potential clinical usefulness of (18)F-FDG PET/CT for the detection of infections of unknown origin in this patient population remains unclear. This study was designed to investigate this issue.
Methods: Between October 2011 and July 2014, a total of 104 adult MHD patients with sepsis underwent (18)F-FDG PET/CT for the detection of unknown infection foci. Follow-up was continued until October 2014. Positive (18)F-FDG PET/CT findings and mortality served as the main outcome measures.
Results: Of the 104 study patients, 73 (70.2%) had positive (18)F-FDG PET/CT findings, and a total of 95 major infection foci were identified. Eighteen patients (24.6%) had at least 2 infection foci on (18)F-FDG PET/CT scans. Seven (53.8%) of the 13 patients with primary vascular access-related infections had concurrent metastatic foci. Twenty-eight patients (26.9%) had their treatments modified by (18)F-FDG PET/CT results. Multivariate logistic regression analysis demonstrated that low hemoglobin and high C-reactive protein levels at diagnosis were the independent predictors of positive (18)F-FDG PET/CT results. Twenty-seven patients (26.0%) died during their hospital stay, and 24 of them had positive (18)F-FDG PET/CT findings (P = 0.014). Positive (18)F-FDG PET/CT results were an independent predictor of mortality (hazard ratio, 3.896; 95% confidence interval, 1.039-14.613; P = 0.044).
Conclusion: Our results suggest that (18)F-FDG PET/CT may be clinically useful for detecting occult infection foci in end-stage renal disease patients undergoing MHD. In this population, positive (18)F-FDG PET/CT findings may lead to a significant change in clinical management and independently predict mortality.
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http://dx.doi.org/10.2967/jnumed.114.151696 | DOI Listing |
Cancer Imaging
December 2024
Department of Translational Imaging in Oncology, National Center for Tumor Diseases (NCT/UCC) Dresden, Medical Faculty and University Hospital Carl Gustav Carus, TUD Dresden University of Technology, Fetscherstraße 74, Dresden, 01307, Germany.
Purpose: Staging of non-small cell lung cancer (NSCLC) is commonly based on [F]FDG PET/CT, in particular to exclude distant metastases and guide local therapy approaches like resection and radiotherapy. Although it is hoped that PET/CT will increase the value of primary staging compared to conventional imaging, it is generally limited to the characterization of TNM. The first aim of this study was to evaluate the PET parameter metabolic tumor volume (MTV) above liver background uptake as a prognostic marker in lung cancer.
View Article and Find Full Text PDFGen Thorac Cardiovasc Surg Cases
December 2024
Department of Cardiovascular Surgery, Teikyo University Hospital, 2-21-1 Kaga, Itabashi-Ku, Tokyo, 173-8606, Japan.
Background: Cardiac myxoma rarely occurs in the right ventricle, and as is a benign disease, it rarely shows high positivity on 18F fluorodeoxyglucose (FDG) positron emission tomography/computed tomography (PET/CT).
Case Presentation: We present herein the case of a 77-year-old woman who was found to have a heart murmur during a routine health checkup. Further examination revealed a 27-mm tumor in the right ventricular outflow tract (RVOT) and moderate aortic valve stenosis.
World J Surg Oncol
December 2024
Department of Urology, Başaksehir Çam and Sakura City Hospital, Istanbul, Turkey.
Purpose: Although 18 F-FDG-PET/CT is helpful in defining many types of cancer, localized prostate cancer should not be treated with this technique. This study describes the use of multi-parametric MRI (mpMRI) to characterize incidental 18 F-FDG uptake in the prostate.
Methods And Materials: While 18 F-FDG-PET/CT is useful for characterizing a variety of cancers, it is not advised for prostate cancer that is localized.
BMC Med Imaging
December 2024
Department of Nuclear Medicine, Hospital 108, Hanoi, Vietnam.
Objective: Identifying prognostic markers for clinical outcomes is crucial in selecting appropriate treatment options for patients with radioiodine-refractory (RAI-R) differentiated thyroid carcinoma (DTC). The aim of this study was to investigate the prognostic value of clinico-pathological features and semiquantitative [F]FDG PET/CT metabolic parameters in predicting progression-free survival (PFS) in DTC patients with RAI-R.
Patients And Methods: This prospective cohort study included 110 consecutive RAI-R DTC patients who were referred for [F]FDG PET/CT imaging.
EJNMMI Rep
December 2024
Department of Oncology and Nuclear Medicine, University Hospital Centre Sestre Milosrdnice, Zagreb, Croatia.
Brown tumors or osteitis fibrosa cystica are a rare bone metabolism disorder that may mimic cancer metastasis. It represents a late manifestation of prolonged and mostly unrecognized hyperparathyroidism. In this case report we present a 44-year-old female patient with multiple lesions detected on bone scintigraphy and F- FDG-PET/CT, initially interpreted as a bone metastatic disease, rather than multiple gigantocellular bone tumors.
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