Wang-Sheng Chen1, Jian-Jun Li1, Lan Hong2, Zeng-Bao Xing1, Fen Wang3, Chang-Qing Li1. 1. Department of Radiology, People's Hospital of Hainan Province Haikou 570311, China. 2. Department of Gynacology, People's Hospital of Hainan Province Haikou 570311, China. 3. Department of Radiotherapy, People's Hospital of Hainan Province Haikou 570311, China.
Abstract
BACKGROUND: A meta-analysis was conducted to evaluate the accuracy of MRI, CT and FDG PET/CT in TNM stage of nasopharyngeal carcinoma patients (NPC). METHODS: Through a search of studies from 1996 to April 2015, pooled estimated sensitivity, specificity, pooled diagnostic odds ratio (DOR), summary receiver operating characteristic (SROC) curves and Q*-index were calculated. RESULTS: Totally 23 studies were included for analysis. In T stage, the pooled sensitivity, specificity, DOR and SROC of MRI were 0.95 (95% CI 0.93-0.97), 0.76 (95% CI 0.71-0.80), 86.85 (16.36-461.06) and 0.9213 (SE 0.0372) respectively. The pooled sensitivity, specificity, DOR and SROC of CT were 0.84 (95% CI 0.79 to 0.88), 0.80 (95% CI 0.71 to 0.88), 6.32 (1.17 to 34.02) and 0.7215 (SE 0.054) respectively. The pooled sensitivity, specificity, DOR and SROC of FDG PET/CT were 0.85 (95% CI 0.76 to 0.91), 0.91 (95% CI 0.84 to 0.96) and 0.8673 (SE 0.0311). In N stage, the pooled sensitivity, specificity, DOR and SROC of MRI were 0.88 (95% CI 0.85-0.90), 0.95 (95% CI 0.93-0.97), 93.68 (23.21-379.69) and 0.9153 (SE 0.099) respectively. The pooled sensitivity, specificity, DOR and SROC of CT were 0.92 (95% CI 0.88-0.95), 0.93 (0.76-0.99), 93.81 (22.39-393.03) and 0.8872 (SE 0.0520) respectively. The pooled sensitivity, specificity, DOR and SROC of FDG PET/CT were 0.88 (95% CI 0.85-0.90), 0.95 (95% CI 0.93-0.97), 93.88 (23.21-379.69) and 0.9153 (SE 0.0299) respectively. In M stage, the pooled sensitivity and specificity of MRI were 0.53 (95% CI 0.35-0.70) and 0.99 (95% 0.95-1.00). The pooled sensitivity and specificity of CT were 0.80 (95% CI 0.44-0.97) and 0.93 (95% CI 0.86-0.97) respectively. The pooled sensitivity, specificity and SROC of FDG PET/CT were 0.82 (95% 0.74-0.88), 0.98 (95% CI 0.96-0.99) and 0.9002 (SE 0.075) respectively. CONCLUSION: The analysis suggested that MRI had good accuracy in diagnosis of T stage. Whereas CT is currently a good performance in diagnosis of N stage, FDG PET/CT shows good accuracy in diagnosis of M stage.
BACKGROUND: A meta-analysis was conducted to evaluate the accuracy of MRI, CT and FDG PET/CT in TNM stage of nasopharyngeal carcinomapatients (NPC). METHODS: Through a search of studies from 1996 to April 2015, pooled estimated sensitivity, specificity, pooled diagnostic odds ratio (DOR), summary receiver operating characteristic (SROC) curves and Q*-index were calculated. RESULTS: Totally 23 studies were included for analysis. In T stage, the pooled sensitivity, specificity, DOR and SROC of MRI were 0.95 (95% CI 0.93-0.97), 0.76 (95% CI 0.71-0.80), 86.85 (16.36-461.06) and 0.9213 (SE 0.0372) respectively. The pooled sensitivity, specificity, DOR and SROC of CT were 0.84 (95% CI 0.79 to 0.88), 0.80 (95% CI 0.71 to 0.88), 6.32 (1.17 to 34.02) and 0.7215 (SE 0.054) respectively. The pooled sensitivity, specificity, DOR and SROC of FDG PET/CT were 0.85 (95% CI 0.76 to 0.91), 0.91 (95% CI 0.84 to 0.96) and 0.8673 (SE 0.0311). In N stage, the pooled sensitivity, specificity, DOR and SROC of MRI were 0.88 (95% CI 0.85-0.90), 0.95 (95% CI 0.93-0.97), 93.68 (23.21-379.69) and 0.9153 (SE 0.099) respectively. The pooled sensitivity, specificity, DOR and SROC of CT were 0.92 (95% CI 0.88-0.95), 0.93 (0.76-0.99), 93.81 (22.39-393.03) and 0.8872 (SE 0.0520) respectively. The pooled sensitivity, specificity, DOR and SROC of FDG PET/CT were 0.88 (95% CI 0.85-0.90), 0.95 (95% CI 0.93-0.97), 93.88 (23.21-379.69) and 0.9153 (SE 0.0299) respectively. In M stage, the pooled sensitivity and specificity of MRI were 0.53 (95% CI 0.35-0.70) and 0.99 (95% 0.95-1.00). The pooled sensitivity and specificity of CT were 0.80 (95% CI 0.44-0.97) and 0.93 (95% CI 0.86-0.97) respectively. The pooled sensitivity, specificity and SROC of FDG PET/CT were 0.82 (95% 0.74-0.88), 0.98 (95% CI 0.96-0.99) and 0.9002 (SE 0.075) respectively. CONCLUSION: The analysis suggested that MRI had good accuracy in diagnosis of T stage. Whereas CT is currently a good performance in diagnosis of N stage, FDG PET/CT shows good accuracy in diagnosis of M stage.
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