Brain tumor imaging with 99mTc-tetrofosmin:: comparison with 201Tl, 99mTc-MIBI, and 18F-fluorodeoxyglucose

被引:49
作者
Choi, JY
Kim, SE
Shin, HJ
Kim, BT
Kim, JH
机构
[1] Sungkyunkwan Univ, Sch Med, Samsung Med Ctr, Dept Nucl Med, Seoul 135710, South Korea
[2] Sungkyunkwan Univ, Sch Med, Samsung Med Ctr, Dept Neurosurg, Seoul 135710, South Korea
关键词
brain tumor; Tc-99m-tetrofosmin; single-photon emission computed tomography;
D O I
10.1023/A:1006391701818
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
The purpose of the present study was to assess the ability of technetium-99m-tetrofosmin (Tc-99m-TF) to predict tumor malignancy and to compare its uptake with that of thallium-201 (Tl-201), technetium-99m-hexakis-2-methoxyisobutyl isonitrile (Tc-99m-MIBI) and fluorine-18-fluorodeoxyglucose (F-18-FDG) in brain tumors. Tc-99m-TF single-photon emission computed tomography (SPECT) imaging was performed in 22 patients with brain tumors and 3 healthy controls. Some of the patients underwent Tl-201 (n = 12) and Tc-99m-MIBI SPECT (n = 14) and F-18-FDG positron emission tomography (PET) (n = 12). The radioactivity ratio of tumor to contralateral normal tissue (T/N) and the ratio of tumor to contralateral white matter (T/WM) were calculated in SPECT and PET images, respectively. In healthy controls, Tc-99m-TF uptake was seen only in scalp, in the choroid plexus and pituitary gland, but not in normal cerebral parenchyma. TF T/N in low grade gliomas (2.8 +/- 0.4) was significantly lower,than that in high grade gliomas (22.5 +/- 29.8) and malignant non-gliomas (8.3 +/- 2.8) without overlap of values (p = 0.003 and p = 0.014, respectively). TF T/N was significantly correlated with MIBI T/N (p = 0.92, p = 0.001), T1 T/N (p = 0.72, p = 0.017), and FDG T/WM (p = 0.65, p = 0.031). There was an excellent agreement between TF T/N and MIBI T/N values on linear regression analysis (MIBI T/N = -0.63 + 0.97 x TF T/N). These preliminary results indicate that SPECT imaging with Tc-99m-TF may be useful for the non-invasive grading of brain tumors. They also suggest that Tc-99m-TF and Tc-99m-MIBI may accumulate in brain tumors by a similar mechanism or in relation to a similar process of tumor cell proliferation.
引用
收藏
页码:63 / 70
页数:8
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