Diagnostic Value of Two-Dimensional Plus Four-Dimensional Ultrasonography in Fetal Craniocerebral Anomalies

Background: to assess the clinical value of two-dimensional (2d) plus four-dimensional (4d) ultrasonography in diagnosis of fetal craniocerebral anomalies. methods: retrospective analysis was performed on the sonographic features of 83 maternity patients admitted to northwest women’s and children’s hospital, xian china from january 2013 to december 2017 diagnosed with suspected fetal anomalies of the brain and skull through 2d and 4d ultrasonography. results: fifty six patients were diagnosed with the anomalies by 2d ultrasonography only, 65 patients by 4d ultrasonography only, and 74 patients by 2d plus 4d ultrasonography.76 patients were confirmed to have fetal craniocerebral anomalies after birth or induced labor. diagnostic accuracies of 2d ultrasound only, 4d ultrasound only, and 2d plus 4d ultrasound were 68.67%, 81.93% and 95.18%, respectively (p<0.05). the accuracy of 2d plus 4d ultrasound was greater than those of 2d ultrasound only and 4d ultrasound only, and the accuracy of 4d ultrasound only was higher than that of 2d ultrasound only (p<0.05). the sensitivity of 2d plus 4d ultrasound was greater than those of 2d ultrasound only and 4d ultrasound only (p<0.05). the specificity of 2d plus 4d ultrasound was greater than those of 2d ultrasound only and 4d ultrasound only (p<0.05). conclusion: combined ultrasonography can better differentiate fetal craniocerebral anomalies, providing early and more accurate information for clinicians as well as maternity patients to make a decision. this clinical practice would be valuable for improving the quality of the newborn population.