Increased fdg uptake meaning
[DOC File]Nodule risk calculators
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No increased FDG uptake focus suggesting distantmetastasis was observed in 32 of 39 patients with a solitary pulmonary nodule (group 1a) who were examined with FDG-PET/CT. However, true positive distant metastases were determined in 5 (12.8%) of these patients.
[DOC File]QIBA Wiki
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FDG is a glucose analogue. The rationale for its use in oncology is based on the typically increased glucose metabolism of tumors compared to normal tissue. FDG is transported into tumor cells via glucose transport proteins, usually up-regulated in tumor cells.
[DOCX File]Australian public assessment for Pralatrexate
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Meaning. ALCL . anaplastic large cell lymphoma. ALK. ... the potential for false negative findings as a consequence of variable FDG avidity among tumour subtypes and/or variable resolution of PET equipment; and confounding by concomitant administration of haemopoietic growth factors that can cause diffusely increased bone marrow uptake.46 Thus ...
[DOC File]Imaging of hypoxia in brain tumours
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Group A and B demonstrated increased [18F]FMISO uptake in the post-treatment scan compared to the baseline scan, whereas groups C and D showed decreased tracer uptake. The group receiving the combined treatment showed a percentage change of SUV max (ΔSUVmax) significantly lower than the other groups (P
[DOC File]Endokrin Cerrahisi Derneği - Ana Sayfa
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Foci of increased radioactive iodine (RAI) uptake in the thyroid bed following total thyroidectomy (TT) indicate residual thyroid tissue that may be benign or malignant. ... Besides, one half of the patients were FDG negative, meaning that further studies are needed to assess the prognostic-clinical value of PET negativity. PMID: 25120245.
[DOCX File]Viktor's Notes – Brain Tumors (general)
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Concept of malignancy in CNS has different meaning from that which applies to systemic cancers; ... characteristic of rapidly growing tumor is increased anaerobic glycolysis (FDG PET - high glucose utilization but low oxygen extraction). ... (show increased uptake compared with normal brain parenchyma) and .
[DOCX File]List of tables - Department of Health | Welcome to the ...
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PET is used to evaluate the uptake of FDG by brain tissue, measured as the regional cerebral metabolic rate for glucose (CMRgl). The CMRgl provides information about the entity of neuronal loss or synapse dysfunction, which are important indicators of AD (Vacante et al, 2013).
[DOCX File]Consultation Protocol
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Currently, FDG PET has limited uptake and availability in Australia, and CT imaging with delayed contrast enhancement is an emerging technique for determining viability. Therefore, CMRI may have the greatest impact on the utilisation of low-dose dobutamine stress echocardiography and SPECT.
[DOC File]Imperial College London
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A :Coronal section showing increased 18F-FDG uptake in the abdomen of male patient with painfull aneurysm (Arrow) B : Fused PET and CT Imaging shows increased uptake in the wall of an abdominal aortic aneurysm (Arrow) C :Sagital section of PET-CT confirms increasing 18F-FDG FDG uptake at the anterior wall of AAA. Figure 7.
[DOC File]X
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FDG uptake into both tumors and other body tissues is a dynamic process that peaks and plateaus at various time points dependent upon multiple variables.25,26 Therefore, it is extremely important that (1) the time interval between FDG administration and the start of emission scan acquisition is consistent and (2) when repeating a scan on the ...
[DOCX File]AusPAR Attachment 2: Extract from the Clinical Evaluation ...
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Subgroup analyses were conducted for geographical region, age, sex, histological subtype, site of metastases, FDG-PET uptake (positive or negative), prior cumulative dosing of RAI and tumour burden. OS and TTP were analysed using the same methods as those used for the primary analysis of PFS.
[DOC File]Diagnostic, Therapeutic and Healthcare Management Protocol ...
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18F-FDG PET-CT. 18F-FDG PET-CT can be useful in case of elevated thyroglobulin levels potentially due to local and/or distant recurrence, in case of suspicious lesions without 131I uptake. This technique, used for the staging of many cancers, may incidentally reveal areas of increased uptake within the thyroid - "incidentalomas" - that, in 25% ...
[DOC File]NCI Protocol
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However, it must be acknowledged that both approaches may lead to false positive CR due to limitations of FDG-PET and biopsy resolution/sensitivity. Note: A ‘positive’ FDG-PET scan lesion means one which is FDG avid with an uptake greater than twice that of the surrounding tissue on the attenuation corrected image. 11.1.4 Response Criteria
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