Nan fang yi ke da xue xue bao = Journal of Southern Medical University · 2009
[Clinical value of PET in identifying cervical nodal metastases of tongue cancer: a comparison with CT/MRI and clinical palpation in 38 cases].
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Zhu Li-Jun, Chen Zhong-Wei, Hou Qing-Yi, Wang Qi-Peng, Jiang Sui, Feng Hang, Zheng Wei-Ping, Xiao Han-Geng, Chang Xiu-Lin
Аннотация
OBJECTIVE: To assess the value of PET in the identification of cervical nodal metastases of tongue cancer in comparison with CT/MRI and clinical palpation.
METHODS: Thirty-eight patients with tongue cancer underwent PET and CT/MRI within 2 weeks before surgery. The results of PET, CT/MRI, and clinical palpation were interpreted separately to assess the regional lymph node status, using histopathological analysis as the golden standard. The differences in the sensitivity, specificity and accuracy among the imaging modalities and clinical palpation were analyzed.
RESULTS: The sensitivity of PET for nodal metastasis identification was 11.1% higher than that of CT/MRI (83.3% vs 72.2%, P=0.423) and 16.6% higher than that of clinical palpation (83.3% vs 66.7%, P=0.248). The specificity of PET was 5% higher than that of CT/MRI (80% vs 75%, P=0.703) and 15% higher than that of clinical palpation (80% vs 65%, P=0.288). The accuracy of PET, CT/MRI, and clinical palpation in identifying cervical nodal metastases was 81.6%, 73.7% and 65.8%, respectively.
CONCLUSION: The sensitivity, specificity and accuracy of PET for detecting cervical nodal metastases are greater than those of CT/MRI and clinical palpation. Although the results failed to show statistically significant differences, we still recommend that PET be used as a supplementary modality for identifying nodal metastases of tongue cancer.
METHODS: Thirty-eight patients with tongue cancer underwent PET and CT/MRI within 2 weeks before surgery. The results of PET, CT/MRI, and clinical palpation were interpreted separately to assess the regional lymph node status, using histopathological analysis as the golden standard. The differences in the sensitivity, specificity and accuracy among the imaging modalities and clinical palpation were analyzed.
RESULTS: The sensitivity of PET for nodal metastasis identification was 11.1% higher than that of CT/MRI (83.3% vs 72.2%, P=0.423) and 16.6% higher than that of clinical palpation (83.3% vs 66.7%, P=0.248). The specificity of PET was 5% higher than that of CT/MRI (80% vs 75%, P=0.703) and 15% higher than that of clinical palpation (80% vs 65%, P=0.288). The accuracy of PET, CT/MRI, and clinical palpation in identifying cervical nodal metastases was 81.6%, 73.7% and 65.8%, respectively.
CONCLUSION: The sensitivity, specificity and accuracy of PET for detecting cervical nodal metastases are greater than those of CT/MRI and clinical palpation. Although the results failed to show statistically significant differences, we still recommend that PET be used as a supplementary modality for identifying nodal metastases of tongue cancer.