Placenta accrete spectrum (PAS) disorders may lead to common complication like catastrophic perinatal hemorrhage. T2W is the most useful MRI sequence for identification of PAS disorders, but the diagnosis of PAS is often difficult and highly subjective. To overcome this problem, we automatically segmented the placental regions by nnU-Net and used radiomics features extracted from the segmented region to build a radiomics-clinical model for identification of placenta invasion. 512 pregnant women were enrolled in this study. Our segmentation model achieved a mean Dice coefficient of 0.890 and the classification model achieved an AUC of 0.849 on the independent validation cohort.
How to access this content:
For one year after publication, abstracts and videos are only open to registrants of this annual meeting. Registrants should use their existing login information. Non-registrant access can be purchased via the ISMRM E-Library.
After one year, current ISMRM & ISMRT members get free access to both the abstracts and videos. Non-members and non-registrants must purchase access via the ISMRM E-Library.
After two years, the meeting proceedings (abstracts) are opened to the public and require no login information. Videos remain behind password for access by members, registrants and E-Library customers.
Keywords