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The Value of Multidisciplinary Neuro-oncological Tumor Boards to Increase the Accuracy of FET PET for Identifying Brain Tumor Relapse.
Clin Nucl Med
January 2025
Institute of Neuroscience and Medicine (INM-3, INM-4), Research Center Juelich, Juelich, Germany.
Purpose: Especially in Europe, amino acid PET is increasingly integrated into multidisciplinary neuro-oncological tumor boards (MNTBs) to overcome diagnostic uncertainties such as treatment-related changes. We evaluated the accuracy of MNTB decisions that included the O-(2-[18F]-fluoroethyl)-L-tyrosine (FET) PET information compared with FET PET results alone to differentiate tumor relapse from treatment-related changes.
Patients And Methods: In a single academic center, we retrospectively evaluated 180 MNTB decisions of 151 patients with CNS WHO grade 3 or 4 gliomas (n = 122) or brain metastases (n = 29) presenting equivocal MRI findings following anticancer treatment.
A Personalized Approach for Oligometastatic Prostate Cancer: Current Understanding and Future Directions.
Cancers (Basel)
January 2025
Department of Hematology-Oncology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
Oligometastatic prostate cancer (OMPC) represents an intermediate state in the progression from localized disease to widespread metastasis when the radiographically significant sites are limited in number and location. With no clear consensus on a definition, its diagnostic significance and associated optimal therapeutic approach remain controversial, posing a significant challenge for clinicians. The current standard of care for metastatic disease is to start systemic therapy; however, active surveillance and targeted radiotherapy have become attractive options to mitigate the long-term effects of androgen deprivation therapy (ADT).
View Article and Find Full Text PDFBasal Cell Carcinoma of the Head With Intense [68Ga]OncoFAP Uptake.
Clin Nucl Med
November 2024
German Cyberknife-Centre, Soest.
A 72-year-old man with advanced locally invasive basal cell carcinoma of the forehead failed several pretreatments including surgery and radiation. MRI was not feasible because of the presence of facial implants. CT scan did not provide clear evidence of vital/avital tumor sites as a result of slow progression and previous radiation treatments.
View Article and Find Full Text PDFVoxel-Based Dosimetry Predicts Local Tumor Progression Post 90 Y Radiation Segmentectomy of Colorectal Liver Metastases.
Clin Nucl Med
February 2025
From the Interventional Oncology/Radiology Service, Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY.
Background: Radiation segmentectomy (RS) is an alternative potential local curative treatment for selected colorectal liver metastases (CLMs) not amenable to ablation or limited resection.
Purpose: The aim of this study was to evaluate the dosimetric response of low volume CLMs to RS in heavily pretreated patients who are not candidates for resection or percutaneous ablation.
Patients And Methods: This single-center retrospective study evaluated CLMs patients treated with RS (prescribed tumor dose >190 Gy) from 2015 to 2023.
Utility of F18-FDG PET/CT in the Evaluation of Pituitary Uptake.
World J Nucl Med
December 2024
Department of Nuclear Medicine, Christian Medical College and Hospital, Vellore, Tamil Nadu, India.
Pituitary adenoma is the most common disease that affects the gland and may be classified as functional/nonsecretory tumors. Inflammatory/infective causes may also affect the pituitary gland. The 18F-fluorodeoxyglucose positron emission tomography/computed tomography (F18-FDG PET/CT) may have an incremental value in assessing these lesions and in determining their clinical significance.
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