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Table 4 Mean positional metric results for the inter-observer variability

From: Multimodality imaging with CT, MR and FDG-PET for radiotherapy target volume delineation in oropharyngeal squamous cell carcinoma

 

Mean Inter-observer Variability (SD)

Significant Differences with a confidence level of 95 %

CT

CT-MR

MR

(p-value <0.05)

CI

0.37 (0.12)

0.44 (0.09)

0.47 (0.09)

CT < CT-MR

CT < MR

MDC (mm)

8.8 (4.1)

7.5 (2.6)

6.9 (2.5)

MR < CT

CGD (mm)

7.7 (4.5)

4.8 (2.6)

4.4 (2.5)

CT-MR < CT

MR < CT

DICE

0.57 (0.15)

0.66 (0.09)

0.69 (0.10)

CT < CT-MR

CT < MR