Mehmet OBUT, Arife AKAY, Özge YÜCEL ÇELİK, Ayşe KELEŞ, Cantekin İSKENDER, Ali Turhan ÇAĞLAR, ihsan BAĞLI, Ali Emre TAHAOĞLU

The Value of a Prenatal MRI In Adjunct to Prenatal USG For Cases with Suspected or Diagnosed Fetal Anomalies

An accurate diagnosis of the anomalies plays a crucial role in the guidance and management of pregnancy, prenatalcounselling, and postnatal therapies. This study aimed to evaluate the value of fetal magnetic resonance imaging (MRI) inadjunct to ultrasonography (USG) for cases with suspected or diagnosed fetal anomalies.This retrospective study included 86 fetuses that were evaluated using a fetal MRI and USG within 14 days for a diagnosticquery. To evaluate the diagnostic performance and value of the fetal MRI, patients were grouped according to the finaldiagnosis, which was revealed in the post-natal or post-terminated period. The patients were grouped according to weather,or not correct or additional findings revealed on these diagnostic modalities.According to the final diagnosis, the most common anomaly was the central nervous system (CNS) (n=62, 72%), followedby genitourinary (n=11, 13%). Both modalities were correct, and MR did not reveal additional findings in most cases (65 of86 cases, 76%). İn eight cases (9%) MR was correct, but USG was incorrect. USG was correct and MRI was incorrect in 2cases (2%). USG was correct but MRI revealed additional findings in 9 cases (10%) were in group 4. Both modalities wereincorrect in 2 cases (2%).İn adjunct to USG, a fetal MRI increases the diagnostic accuracy and provides additional information. The MRI is moreuseful for certain indications, such as agenesis of corpus callosum, neural migration defects, posterior fossa anomalies,intracranial cysts, and urogenital system anomalies.

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