. 2019 Dec 4;8(12):2141. doi: 10.3390/jcm8122141

Table 2.

Accuracy of cervical canal angle for the diagnosis of posterior uterine wall adhesion.

Definition of Abnormal Cervical Angle		Sensitivity (%)	Specificity (%)	Positive Predictive Value	Negative Predictive Value
When a cervical canal angle of ≤10° is an abnormal sign	All patients (n = 96)	81.0	89.3	0.68	0.94
When a cervical canal angle of ≤10° is an abnormal sign	MRI at a gestational age of ≤32 weeks (n = 65)	92.0	86.7	0.76	0.96
When a cervical canal angle of ≤0° is an abnormal sign	All patients (n = 96)	57.0	97.0	0.86	0.89
When a cervical canal angle of ≤0° is an abnormal sign	MRI at a gestational age of ≤32 weeks (n = 65)	67.0	100	1.00	0.91

Upper panel lists the sensitivity, specificity, PPV, and NPV, when a cervical canal angle of ≤10° is designated as an abnormal sign. Lower panel lists the sensitivity, specificity, PPV, and NPV, when a cervical canal angle of ≤0° is designated as an abnormal sign. Abbreviations: PPV, positive predictive value; NPV, negative predictive value.