Real-Life Diagnostic Accuracy of MRI in Prenatal Diagnosis

Table 6

Diagnostic accuracy of the fetal ultrasound relative to postnatal diagnosis, concordance, and usefulness of fetal MRI of the 623 cases referred from reference and non-reference ultrasound centers.

	Fetal ultrasound studies performed in centers of reference (n = 362)	Fetal ultrasound studies not performed in centers of reference (n = 261)	-value
Diagnostic accuracy of fetal ultrasound	329 (90.9%)	234 (89.7%)	0.608
Concordance between fetal ultrasound and MRI	338 (93.4%)	236 (90.4%)	0.177
MRI provides additional information over fetal ultrasound	96 (26.5%)	48 (18.4%)	0.018
MRI provides additional information useful for perinatal management and prognosis over fetal ultrasound	53 (14.6%)	19 (7.3%)	0.004
MRI is the only accurate diagnosis	22 (6.1%)	23 (8.8%)	0.193

-value of the chi-squared tests for the differences in diagnostic accuracy of fetal ultrasound, concordance, and usefulness of MRI between cases referred from ultrasound reference and nonreference centers.