نتایج جستجو برای: fdg uptake phase
تعداد نتایج: 734512 فیلتر نتایج به سال:
Here we present a case of an untreated, asymptomatic, pulmonary hydatid cyst incidentally diagnosed on the basis of atypically low-grade (18)F-FDG uptake in the peripheral rim and a minimal increase in uptake on dual-point (18)F-FDG PET/CT. The patient underwent (18)F-FDG PET/CT for characterization of a solitary lung lesion found on chest radiography and inconclusive findings on contrast-enhan...
Since its introduction into clinical practice, multimodality imaging has revolutionized diagnostic for both oncologic and non-oncologic pathologies. 18 F-fluorodeoxyglucose ( F-FDG) PET/CT which takes advantage of increased anaerobic glycolysis that occurs in tumor cells (Warburg effect) gained significant relevance the management most, if not all conditions. Because FDG is taken by normal abno...
BACKGROUND Pulmonary arterial hypertension (PAH) is a disease of progressive vascular remodeling, characterized by dysregulated growth of pulmonary vascular cells and inflammation. A prevailing view is that abnormal cellular metabolism, notably aerobic glycolysis that increases glucose demand, underlies the pathogenesis of PAH. Increased lung glucose uptake has been reported in animal models. F...
Positron emission tomography (PET) using the radiolabeled glucose analogue 18F-FDG allows uncovering glycolysis processes within cancer cells and reveals high value in diagnosis, staging, relapse and therapeutic response evaluation in several malignancies. Breast cancer presents considerable variability when it comes to 18F-FDG uptake, which results in different sensitivity and specificity valu...
It is not clear if 18FDG-PET can be useful for detection of inflammation in low to moderate carotid stenosis. We studied 15 patients scheduled for endarterectomy with contralateral carotids with less than 50% stenosis. 18-FDG-PET was performed prior to CEA and 3 months following surgery. FDG-uptake values were calculated based on maximum standardized uptake value (SUV) and corresponding uptake ...
UNLABELLED Our purpose was to compare the performance of (68)Ga-1,4,7,10-tetraazacyclododecane-N,N',N'',N'''-tetraacetic acid-d-Phe(1),Tyr(3)-octreotate (DOTATATE), a novel selective somatostatin receptor 2 PET ligand, and (18)F-FDG in the detection of pulmonary neuroendocrine tumors using PET/CT, with correlation of uptake and tumor grade on histology. METHODS The imaging findings of the fir...
A diagnosis of ductal carcinoma in situ (DCIS) at needle biopsy often changes to that of invasive ductal carcinoma as the definitive pathological diagnosis following the surgical procedure. The present study sought to identify the factors associated with invasive disease in cases diagnosed as DCIS on needle biopsy by analyzing 18F-fluorodeoxyglucose-proton emission tomography (FDG-PET) findings...
BACKGROUND Gastric cancer exhibits various degrees of fluorine F-18 fluorodeoxyglucose ((18)F-FDG) uptake on positron emission tomography/computed tomography (PET/CT). We evaluated the relationship between (18)F-FDG uptake and the presence/absence of metastasis in individual lymph nodes (LN) on a one-to-one basis. METHODS We analyzed 21 patients with gastric cancer. We injected (18)F-FDG intr...
Though 18F-FDG PET/CT scans are widely used in non-small cell lung cancer (NSCLC), the mechanism of FDG uptake by lung cancer cells has not yet been fully elucidated. This study evaluated the relationship between FDG uptake and the expression of glucose transporters in NSCLC. Sixty-four NSCLC patients who underwent both preoperative 18F-FDG PET/CT scanning and thoracotomy were included. The max...
OBJECTIVES The objective was to evaluate inflammation in echolucent carotid artery plaques. BACKGROUND Ultrasound echolucency of carotid artery plaques has been proven to differentiate patients at high risk of stroke. On the other hand, positron emission tomography (PET) of plaques with the use of [(18)F]-fluorodeoxyglucose (FDG) identifies highly inflamed plaques, and the combination of mole...
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