Keywords: Placenta, PlacentaPlacenta accreta spectrum (PAS) is a serious threat to maternal life, but ultrasound and conventional MRI have limitations in the diagnosis of PAS. Intravoxel incoherent motion (IVIM) is a technique of diffusion weighted MR imaging, which allows separation of tissue diffusivity and perfusion information based on the signal intensity at varying degrees of b values. We found that IVIM was able to diagnose PAS by showing the basal plate of placenta, the structure dividing the placenta and the uterus. This new finding could improve the diagnostic efficacy of MRI in the diagnosis of PAS.
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