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Journal of Korean Neurosurgical Society 1989;18(5): 706-715.
Evaluation of Brain SPECT Using Tc-99m-Glucoheptonate and Tc-99m-HMPAO in Brain Tumors.
Jong Hyun Kim, Seung Hoon Lee, Sang Moo Lim, Sung Woon Hong
1Department of Neurosurgery, Korea Cancer Center Hospital, Seoul, Korea.
2Department of Nuclear Medicine, Korea Cancer Center Hospital, Seoul, Korea.
Brain SPECT with Tc-99m-Glucoheptonate(GH) and Tc-99m-HMPAO were performed in 41 patients with brain tumors to determine the difference of uptake ratio in various histological type of tumors. SPECT studies were carried out with a rotating gamma camera in 60 minutes after intravenous injection of 15mCi of Tc-99m-GH and Tc-99m-HMPAO respectively. We counted tumor/skull(T/S) ratio on Tc-99m-GH SPECT(30 cases) and tumor/normal(T/N) ratio on Tc-99m-HMPAO SPECT(33 cases) by the use of ROI(Region of Interest) analysis. In our present study, we obtained positive uptake scans in all cases of brain tumors performed Tc-99m-GH SPECT and there was statistically significant correlation among certain type of tumor and uptake ratio. On Tc-99m-HMPAO SPECT, most of brain tumors showed decreased uptake, even in the tumors showing increased vascularity on angiographys and no definite correlation was found between tumor type and uptake ratio. Conclusively, brain SPECT with Tc-99m-GH is considered to be simple but very sensitive method in detecting brain tumors and has some value in preoperative differentiation of tumor types. Tc99m-HMPAO SPECT could be used as a tool of predicting the response to chemotherapy or radiation therapy if it was performed preoperatively and during the postoperative course.
Key Words: Brain tumor; SPECT; Tc-99m-Glucoheptonate; Tc-99m-HMPAO
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