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후두 편평상피암종의 림프절 피막외 침범에 대한 FDG PET/CT 영상의 유용성
주영훈(Young-Hoon Joo)유이령(Ie-Ryung Yoo),조광재(Kwang-Jae Cho),송지남(Jee-Nam Song),유동준(Dong-Joon Yoo),이호석(Ho-Suk Lee),김민식(Min-Sik Kim) 대한두경부종양학회 2012 대한두경부 종양학회지 Vol.28 No.2
Backgrounds:To evaluated the use of FDG PET/CT for the identification of extracapsular spread(ECS) with histologic correlation in laryngeal cancer. Methods:We reviewed 79 medical records of patients who under-went of FDG PET/CT for laryngeal cancer before surgery. Results:ECS was present in 41.9%(18/43) dis-sected necks and in 34.5%(20/58) dissected cervical levels. There was a significant difference in the SUVmax between cervical lymph nodes with ECS and without ECS(6.39±4.53 vs. 1.19±1.64, p<0.001). The cut-off value for the SUVmax for differentiating with ECS from without ECS was 2.8 with the sensitivity of 85.7% and the specificity of 85.6%. Conclusion:The median SUVmax cut-off values of FDG PET/CT higher than 2.8 was associated with greater risk cervical lymph node metastasis with ECS in patients with laryngeal cancer.