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The central nervous system (CNS) tumor with embryonal tumors type is a rare type of CNS tumor with lack of unifying genetic alterations or diagnostic markers. The CNS tumor-embryonal tumors (CETs) have limited therapeutic options with high probability of adverse events associated with conventional treatment. Identification of somatostatin receptor expression and/or prostate-specific membrane antigen expression in CET patients by using PET/CT imaging may be helpful for deciding therapeutic approaches in these patients as theranostics.
View Article and Find Full Text PDFReproducibility and repeatability of 18F-(2S, 4R)-4-fluoroglutamine PET imaging in preclinical oncology models.
PLoS One
January 2025
Vanderbilt Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, TN, United States of America.
Introduction: Measurement of repeatability and reproducibility (R&R) is necessary to realize the full potential of positron emission tomography (PET). Several studies have evaluated the reproducibility of PET using 18F-FDG, the most common PET tracer used in oncology, but similar studies using other PET tracers are scarce. Even fewer assess agreement and R&R with statistical methods designed explicitly for the task.
View Article and Find Full Text PDFC-X-C motif chemokine receptor 4-directed PET signal in the arterial tree is not consistently linked to calcified plaque burden and cardiovascular risk.
Theranostics
January 2025
Department of Nuclear Medicine, University Hospital Würzburg, Würzburg, Germany.
To establish the extent, distribution and frequency of in-vivo vessel wall [Ga]Ga-PentixaFor uptake and to determine its relationship with calcified atherosclerotic plaque burden (CAP) and cardiovascular risk factors (CVRF). 65 oncological patients undergoing [Ga]Ga-PentixaFor PET/CT were assessed. Radiotracer uptake (target-to-background ratio [TBR]) and CAP burden (including number of CAP sites, calcification circumference and thickness) in seven major vessel segments per patient were determined.
View Article and Find Full Text PDFMonitoring of cancer ferroptosis with [F]hGTS13, a system xc- specific radiotracer.
Theranostics
January 2025
Department of Radiology, Molecular Imaging Program at Stanford (MIPS), Stanford University School of Medicine, Stanford, CA, 94305, USA.
Glioblastoma multiforme (GBM) is the most common and aggressive primary brain tumor in adults, characterized by resistance to conventional therapies and poor survival. Ferroptosis, a form of regulated cell death driven by lipid peroxidation, has recently emerged as a promising therapeutic target for GBM treatment. However, there are currently no non-invasive imaging techniques to monitor the engagement of pro-ferroptotic compounds with their respective targets, or to monitor the efficacy of ferroptosis-based therapies.
View Article and Find Full Text PDFSentinel lymph nodes biopsy for malignant tumors using Technefit radioactive colloid Technetium Tc.
Folia Med (Plovdiv)
December 2024
Botkin Hospital, Moscow, Russia.
Technetium-99m (99mTc) is a short-lived nanocolloid nuclide widely used by oncologists to diagnose and identify cancer dissemination.
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