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Changes of Cerebral Blood Flow, and Oxygen and Glucose Metabolism Following Radiochemotherapy of Gliomas

1988; Lippincott Williams & Wilkins; Volume: 12; Issue: 2 Linguagem: Inglês

10.1097/00004728-198803000-00019

1532-3145

Toshihide Ogawa, Kazuo Uemura, F Shishido, Tatsuo Yamaguchi, Matsutaro Murakami, A Inugami, Iwao Kanno, Hiroshi Sasaki, Toshio Kato, Kenji Hirata, Masayoshi Kowada, Katsuyoshi Mineura, Tsuneo Yasuda,

MRI in cancer diagnosis

The effects of radiochemotherapy on blood flow, blood volume, and consumption of oxygen and glucose in tumor tissue and normal brain were studied by positron emission tomography. Thirteen patients with cerebral gliomas were included, and they were examined before, during, and within ∼1 month after the therapy. The 15O-labeled gas steady state inhalation and the 18F-fluorodeoxyglucose methods were used. After the therapy, glucose consumption and blood volume decreased (p < 0.03) in the tumoral tissue. In the structurally (CT) normal gray matter, blood flow, blood volume, and oxygen consumption did not show any significant changes; oxygen extraction fraction, glucose consumption, and glucose extraction fraction, however, decreased significantly (p < 0.05, < 0.02, and < 0.03, respectively).