scholarly journals SUN-458 Use of Positron Emission Tomography in Pituitary Adenomas in Uruguay: a Case Series

2019 ◽  
Vol 3 (Supplement_1) ◽  
Author(s):  
Maria Pineyro ◽  
Mariana Risso ◽  
Paula Montiglia ◽  
Andres Damian ◽  
Ramiro Lima ◽  
...  
Keyword(s):  
Positron Emission Tomography ◽  
Pituitary Adenomas ◽  
Case Series ◽  
Emission Tomography ◽  
Positron Emission

Amino Acid Distribution and Metabolism in Pituitary Adenomas Using Positron Emission Tomography with D-[11C]Methionine and L-[11C]Methionine

1987 ◽  
Vol 11 (3) ◽  
pp. 384-389 ◽  
Author(s):  
Mats Bergström ◽  
Carin Muhr ◽  
Per Olov Lundberg ◽  
Kjell Bergström ◽  
Hans Lundqvist ◽  
...  
Keyword(s):  
Positron Emission Tomography ◽  
Amino Acid ◽  
Pituitary Adenomas ◽  
Emission Tomography ◽  
Amino Acid Distribution ◽  
Positron Emission

2-(18F)-Fluoro-2-Deoxy-D-Glucose Positron Emission Tomography Detects Clinical Relevant Adenomas of the Colon: A Prospective Study

2005 ◽  
Vol 23 (16) ◽  
pp. 3713-3717 ◽  
Author(s):  
Mariëtte C.A. van Kouwen ◽  
Fokko M. Nagengast ◽  
Jan B.M.J. Jansen ◽  
Wim J.G. Oyen ◽  
Joost P.H. Drenth
Keyword(s):  
Positron Emission Tomography ◽  
Fdg Pet ◽  
Malignant Tumors ◽  
Case Series ◽  
Emission Tomography ◽  
Low Grade ◽  
Colonic Adenomas ◽  
Positron Emission ◽  
A Prospective Study ◽  
Fdg Accumulation

Purpose 2-(18F)-fluoro-2-deoxy-D-glucose positron emission tomography (FDG-PET) is a noninvasive imaging technique used clinically to detect malignant tumors. FDG-PET has been established as a tool for diagnosis of recurrent or metastatic colorectal carcinoma. Several case series suggest that FDG-PET also detects larger adenomas. The goal of this study was to investigate whether FDG-PET is able to detect colonic adenomas. Patients and Methods FDG-PET was performed in 100 consecutive patients in whom colonic adenomas were suspected on barium enema (n = 47) or sigmoidoscopy (n = 53). A positive scan was defined as focal large bowel FDG accumulation. FDG-PET was followed in all cases by colonoscopy, and removed adenomas were examined histopathologically. Results Colonoscopy confirmed the presence of adenomas in 68 of 100 patients. In 35 patients, there was focal FDG accumulation at site of the adenoma. The sensitivity of FDG-PET increased with adenoma size (21%, adenomas 1 to 5 mm; 47%, 6 to 10 mm; and 72%, > 11 mm). The sensitivity of FDG-PET also increased with the grade of dysplasia (33%, low grade; 76%, high grade; and 89%, carcinomas). The overall specificity was 84%. Conclusion FDG-PET detects colonic adenomas and the diagnostic test characteristics improve with size and grade of dysplasia of the adenoma.

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