Diagnosis of fatal central nervous system malformations based on prenatal colour doppler ultrasound

Fatal central nervous system (CNS) malformation is one of the most common congenital malformations, and is an important cause of infant mortality. Ultrasound diagnostic technology has the advantages of fast, safe, economic, convenient and real-time dynamic imaging, and it is the first choice for imaging diagnosis of the foetus. This paper studies the diagnosis of fatal central nervous system malformations based on prenatal Doppler ultrasound, and further accumulates clinical experience for prenatal diagnosis.

320 pregnant women who underwent prenatal diagnosis in our hospital from August 2017 to December 2018. Ultrasound showed abnormal fatal craniocerebral development and MRI examination of fatal cranial brain was performed on the same day or the next day. The PHILIPS IU22 colour Doppler ultrasound system was used to scan pregnant women. Ultrasound showed 320 cases of fatal craniocerebral abnormalities and MRI diagnosis on the same day or the next day, of which 122 cases were consistent with MRI results, accounting for 38%; 173 cases were supplemented with MRI diagnostic information, accounting for 54%; MRI corrected diagnostic information There were 16 cases, accounting for 5%; 9 cases were abnormal, but 3 cases were not revealed by MRI.

Ultrasound examination during pregnancy has a high detection rate for the diagnosis of fatal CNS malformations. As the preferred imaging method for prenatal diagnosis, it is essential for timely and early screening of fatal malformations. MRI has a higher diagnostic value for fatal CNS malformations, and can play an important role in supplementing and misdiagnosing cases that have been missed by ultrasound. Therefore, in the prenatal diagnosis, attention should be paid to combining these two inspection methods, each taking its advantages and applying it to clinical.