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12 paź 2023 · When a radiologist describes a region as “FDG avid” in the context of a PET scan, it means that this specific area has absorbed a notable amount of FDG. In most cases, this points towards increased metabolic activity, which can be a sign of various conditions, including cancer.
23 lis 2018 · Many tumors are non-FDG avid, which means they are not sensitive to FDG (fluorodeoxyglucose) tracer or the tumor cells have low or no uptake of FDG tracer. Examples of non-FDG avid tumors are if the tumor size is small, usually less than 1 cm, or low-grade tumours.
29 lis 2019 · The objective of this publication is to provide a case-based method of understanding normal biodistribution, variants, and pitfalls, including several examples of different imaging appearances for the main oncological indications for each of the new non-FDG PET radiopharmaceuticals.
1 maj 2007 · Learning Objectives: 1. Describe tumors likely to show low FDG avidity. 2. Identify reasons for low FDG uptake in known malignancies. 3. Understand the importance of including low FDG uptake tumors in differential diagnosis.
18 cze 2019 · FDG PET/CT can identify if there are any lesions of high FDG avidity, suspicious for transformation, that have developed and can direct biopsy to an accessible highly FDG-avid lesion. Focal FDG avidity within the bone or bone marrow is highly sensitive for osseous lymphoma in FDG-avid lymphomas.
18 paź 2016 · 18 F-fluorodeoxyglucose (FDG) PET/CT is a pivotal imaging modality for cancer imaging, assisting diagnosis, staging of patients with newly diagnosed malignancy, restaging following therapy and surveillance.
28 wrz 2024 · One of the most common signs of an abnormal lymph node is enlargement. On ultrasound, a lymph node is considered abnormal if the short axis diameter exceeds 1 cm. Enlarged lymph nodes are often seen in response to infection, inflammation, or malignancy (cancer).
