Effect of dietary intake before F-18 FDG positron emission tomographic scanning on the evaluation of a solitary pulmonary nodule.
The uptake of fluorine-18 fluorodeoxyglucose (F-18 FDG) by a malignant tumor depends on the blood glucose level. The authors present a striking case that illustrates the importance of blood glucose measurement in F-18 FDG positron emission tomographic (PET) imaging in a patient with a solitary pulmonary nodule. With the emergence of freestanding imaging centers, this case emphasizes the importance of using an objective method, such as a glucometer, to measure blood glucose levels before F-18 FDG PET imaging. Results of the initial scan were equivocal (the patient had eaten before the scan), whereas a hypermetabolic focus was clearly identified on a second scan obtained 2 days later.
Ojha
B
B
Division of Nuclear Medicine, Department of Radiology, University of Alabama at Birmingham Medical Center, Birmingham, Alabama 35249-6830, USA.
Bartley
S C
SC
Gundlapalli
S
S
Mountz
J M
JM
D001786:Blood Glucose / Q000378:metabolism; D005188:False Negative Reactions; D019788:Fluorodeoxyglucose F18 / Q000378:metabolism; D018565:Food-Drug Interactions; D006801:Humans; D008175:Lung Neoplasms / Q000000981:diagnostic imaging* / Q000378:metabolism; D008297:Male; D008875:Middle Aged; D019275:Radiopharmaceuticals / Q000378:metabolism; D003074:Solitary Pulmonary Nodule / Q000000981:diagnostic imaging* / Q000378:metabolism; D014055:Tomography, Emission-Computed
D001786:Blood Glucose; D019275:Radiopharmaceuticals; D019788:Fluorodeoxyglucose F18