Table 3 Intra-group correlation analysis of the primary tumor volume measured by contrast-enhanced MR and 18F-FDG PET/ 68Ga-DOTATATE PET with different thresholds.

From: Comparison of 68Ga-DOTATATE and 18F-FDG PET/CT for tumor staging and primary tumor volume delineation in patients with nasopharyngeal carcinoma

Modalities and thresholds

Tumor volume (cm3)

ICC

95% CI

MR + C

23.14 ± 21.61

  

FDG—THbgd

16.91 ± 16.49

0.85

0.58–0.73

FDG—TH2.5

28.74 ± 26.22

0.88

0.73–0.94

FDG—TH40%

14.16 ± 10.61

0.63

0.25–0.82

TATE—THbgd

21.32 ± 19.72

0.95

0.91–0.99

TATE—TH2.5

19.08 ± 23.26

0.91

0.81–0.95

TATE—TH40%

19.37 ± 18.52

0.93

0.83–0.97

  1. ICC interclass correlation coefficient, CI confidence interval, FDG  18F-FDG, TATE 68Ga-DOTATATE.
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