Function of PET-CT in 125I seeds permanent braehytherapy treatment for lung cancer

HUO Xiao-dong; CHAI Shu-de; ZHENG Guang-jun; YANG Jing-kui; LIANG Ji-xiang; WEI Wei

Journal of China Clinic Medical Imaging ›› 2011, Vol. 22 ›› Issue (9) : 616-618.

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Function of PET-CT in 125I seeds permanent braehytherapy treatment for lung cancer

HUO Xiao-dong, CHAI Shu-de, ZHENG Guang-jun, YANG Jing-kui, LIANG Ji-xiang, WEI Wei

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Abstract

Objective: To explore the location value of PET-CT in 125I seeds permanent braehytherapy treatment for non-small cell lung carcinoma(NSCLC) patients. Methods: From 26 patients with NSCLC underwent whole body PET-CT scans, PET-CT and CT images were input into the treatment plan system(TPS), radiotheapy dose were calculated, compared with gross tumor volume and the numbers of 125I seeds. Results: The gross tumor volume, the mean number of seeds were (51.03±16.02)cm3, 43.88±12.30, in PET-CT group and (58.10±19.11)cm3, 49.46±14.74 respectively, in CT group, gross tumor volume of PET-CT group reduced 12.17%, number of seeds reduced 11.28%(P<0.001). Conclusion: PET-CT is more accurate than CT alone in the assessment of the radiation target volume for NSCLC patients.

Key words

Lung neoplasms / Carcinoma / non-small-cell lung / Positron-emission tomography / Tomography / spiral computed / Radiotherapy

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HUO Xiao-dong;CHAI Shu-de;ZHENG Guang-jun;YANG Jing-kui;LIANG Ji-xiang;WEI Wei. Function of PET-CT in 125I seeds permanent braehytherapy treatment for lung cancer[J]. Journal of China Clinic Medical Imaging. 2011, 22(9): 616-618