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Abstract #4144

Placental Infarction in Fetal MRI: Value of Flow Voids Between the Uterus and the Placenta

Yoshimitsu Ohgiya1, Hiroshi Nobusawa2, Jumpei Suyama1, Syouei Sai1, Makoto Saiki1, Takashi Hashizume1, Noritaka Seino1, Masanori Hirose1, Takehiko Gokan1

1Showa University School of Medicine, Tokyo, Japan; 2Kawasakisaiwai hospital, Kawasaki, Japan

The purpose of this study was to evaluate diminished flow voids on T2-weight RARE MR imaging of the placenta in fetuses with and fetuses without IUGR who were suspected of having placental infarction. The use of diminished flow voids in addition to morphologic signs increased sensitivity for the detection of placental infarction from 66.7% to 83.3%, increased accuracy from 81.5% to 86.8%, and preserved specificity at 90.0%. Evaluating flow voids on T2-weighted RARE images can be useful for detecting placental infarctions, particularly in placentas without morphologic signs on MR imaging.

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Keywords

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