MỨC ĐỘ ĐỒNG THUẬN CỦA CỘNG HƯỞNG TỪ VÀ SIÊU ÂM TRONG VIỆC PHÁT HIỆN MỘT SỐ BẤT THƯỜNG SỌ NÃO CỦA THAI NHI

Abstract

Objectives: assess the level of agreement between magnetic resonance and ultrasound in the detection of some fetal brain abnormalities. Methods: prospective cohort on 66 cases with diagnosis or suspicion of fetal brain abnormalities at Hanoi Medical University Hospital. the data is analyzed and processed by medical statistical method, using SPSS 20.0 software. Results: 98 abnormalities out of a total of 66 cases. MRI Fetal could detect more other abnormalities that ultrasound missed. MRI and ultrasound were partially discordant in 12 (12.24%) abnormalities, completely discordant in 24 abnormalities (24.5%), and concordant in 62 of 98 abnormalities (63.26%). The level of agreement between MRI and ultrasound was almost perfect in ventriculomegaly and cystic lesions with the κ values 0.87 and 0.84, respectively. The level of agreement between MRI and ultrasound was weakest in hemorrhage with κ value 0 (none agreement) and cortical abnormalities with κ value 0.46 (weak agreement). Conclutions: Magnetic resonance is of great value in detecting cranial abnormalities in the fetus, especially cortical developmental abnormalities and focal hemorrhage. MRI could detect more other abnormalities which ultrasound limited evaluation.