Performance of 18F-FDG PET/CT in the Characterization of Adrenal Masses in Noncancer Patients: A Prospective Study

Autor: Damien Huglo, Carole Guerin, Catherine Ansquer, Cendrine Archange, Karine Baumstarck, David Taïeb, Frederic Sebag, Claire Houzard, Anderson Loundou, Pierre Olivier, Antoine Tabarin, Elif Hindié, Eric Mirallié, François Pattou, Jean-Christophe Lifante, Magalie Haissaguerre, Laurent Brunaud
Rok vydání: 2017
Předmět:
Zdroj: The Journal of Clinical Endocrinology & Metabolism. 102:2465-2472
ISSN: 1945-7197
0021-972X
Popis: Few prospective studies have evaluated the role of 18F-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) in the characterization of adrenal masses.To assess the performance of 18F-FDG PET/CT in the malignancy diagnosis of adrenal masses in noncancer patients.Prospective multicenter study.The study population consisted of 87 patients (87 adrenal masses) referred to endocrine surgeons: 56 with mass diameter ≥40 mm and 31 with a diameter40 mm and of indeterminate nature based on unenhanced and washout CT attenuation densities. Fourteen patients had hypercortisolism. Adrenal masses were characterized by 18F-FDG PET/CT. Histology was the gold standard for the diagnosis of malignancy. In the absence of pathological proof (n = 23), the nature of the lesion was based on the 12-month imaging follow-up.Fifteen adrenal masses were classified as malignant (including 11 adrenocortical carcinomas) and 72 as benign. Compared with benign lesions, malignant lesions were larger in size (P = 0.003), had higher unenhanced densities (P = 0.002), lower relative washout values (P = 0.007), and higher 18F-FDG uptake parameters (P10-3). The optimal threshold value of (Tumor SUVmax:Liver SUVmax) the ratio for malignancy was1.5 with sensitivity, specificity, positive predictive value, negative predictive value, and accuracy of 86.7%, 86.1%, 56.5%, 96.9%, and 86.2%, respectively.Our results show that 18F-FDG PET/CT complements adrenal washout CT in the evaluation of adrenal masses and should be recommended in the evaluation of large and/or indeterminate adrenal masses.
Databáze: OpenAIRE