Table 4.

Comparison of MRI performance characteristics to diagnose T3–4 stages with and without diffusion-weighted imaging (DWI)

MRI	Studies (n)	Patients (n)	Sensitivity (95% CI)	Specificity (95% CI)	Positive likelihood ratio (95% CI)	Negative likelihood ratio (95% CI)	Diagnostic odds ratio (95% CI)	Area under the curve	Heterogeneity (I2, %)
With DWI	4	101	0.94 (0.85–0.98)	0.95 (0.88–1.00)	10.30 (4.30–24.69)	0.11 (0.05–0.26)	132.46 (33.74–520.01)	0.9722	0.0–53.1
Without DWI	6	145	0.93 (0.87–0.97)	0.88 (0.79–0.94)	6.83 (4.02–11.62)	0.10 (0.05–0.17)	80.10 (31.83–201.58)	0.9629	0.0–47.9

CI, confidence interval.