Evaluation of the malignancy of glioma using 11C-methionine positron emission tomography and proliferating cell nuclear antigen staining.
11C-methionine positron emission tomography (PET) and proliferating cell nuclear antigen (PCNA) staining were performed in 13 cases of glioma to investigate the relationship between the uptake of L-[methyl]-11C-methionine and the degree of malignancy and proliferative potential. The 11C-methionine uptake was significantly greater in high-grade gliomas compared to low-grade gliomas (P<0.05). The PCNA indexes were also significantly higher in the high-grade cases (P<0.05). Moreover, a strong positive correlation was found between the 11C-methionine values and the PCNA indexes (P<0.005), demonstrating that higher 11C-methionine uptake was associated with greater proliferative potential and greater malignancy. 11C-methionine PET is a potentially useful preoperative method to discriminate the malignancy of glioma.
Sato
N
N
Department of Neurosurgery, School of Medicine, Iwate Medical University, Morioka, Japan.
Suzuki
M
M
Kuwata
N
N
Kuroda
K
K
Wada
T
T
Beppu
T
T
Sera
K
K
Sasaki
T
T
Ogawa
A
A
D000328:Adult; D000368:Aged; D001932:Brain Neoplasms / Q000175:diagnosis / Q000000981:diagnostic imaging* / Q000378:metabolism*; D002250:Carbon Radioisotopes; D005260:Female; D005910:Glioma / Q000175:diagnosis / Q000000981:diagnostic imaging* / Q000378:metabolism*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008715:Methionine; D008875:Middle Aged; D018809:Proliferating Cell Nuclear Antigen / Q000378:metabolism*; D013194:Staining and Labeling; D014055:Tomography, Emission-Computed
D002250:Carbon Radioisotopes; D018809:Proliferating Cell Nuclear Antigen; D008715:Methionine