Scanner-based real-time automated volumetry reporting of the fetus, amniotic fluid, placenta, and umbilical cord for fetal MRI at 0.55T
Neves Silva S, Uus A, Waheed H, Bansal S, St Clair K, Norman W, Aviles Verdera J, Cromb D, Woodgate T, van Poppel M, Steinweg JK, Matthew J, Pushparajah K, Lloyd D, Kyriakopoulou V, Siassakos D, David A, Hajnal JV, Story L, Rutherford MA, Hutter J (2025)
Publication Type: Journal article
Publication year: 2025
Journal
DOI: 10.1002/mrm.70097
Abstract
Purpose: This work aims to enable real-time automated intra-uterine volumetric reporting and fetal weight estimation for fetal MRI, deployed directly on the scanner. Methods: A multi-region segmentation nnUNet was trained on 146 images of 73 fetal subjects (coronal and axial orientations) for the parcellation of the fetal head, fetal body, placenta, amniotic fluid, and umbilical cord from whole uterus bSSFP stacks. A reporting tool was then developed to integrate the segmentation outputs into an automated report, providing volumetric measurements, fetal weight estimations, and z-score visualizations. The complete pipeline was subsequently deployed on a 0.55T MRI scanner, enabling real-time inference and fully automated reporting in the duration of the acquisition. Results: The segmentation pipeline was quantitatively and retrospectively evaluated on 36 stacks of 18 fetal subjects and demonstrated sufficient performance for all labels, with high scores ((Formula presented.) 0.98) for the fetus, placenta, and amniotic fluid, and 0.91 for the umbilical cord. The prospective evaluation of the scanner deployment step was successfully performed on 50 cases, with the regional volumetric reports available directly on the scanner. Conclusions: This work demonstrated the feasibility of multi-regional intra-uterine segmentation, fetal weight estimation, and automated reporting in real-time. This study provides a robust baseline solution for the integration of fully automated scanner-based measurements into fetal MRI reports.
Involved external institutions
United Kingdom (GB)How to cite
APA:
Neves Silva, S., Uus, A., Waheed, H., Bansal, S., St Clair, K., Norman, W.,... Hutter, J. (2025). Scanner-based real-time automated volumetry reporting of the fetus, amniotic fluid, placenta, and umbilical cord for fetal MRI at 0.55T. Magnetic Resonance in Medicine. https://doi.org/10.1002/mrm.70097
MLA:
Neves Silva, Sara, et al. "Scanner-based real-time automated volumetry reporting of the fetus, amniotic fluid, placenta, and umbilical cord for fetal MRI at 0.55T." Magnetic Resonance in Medicine (2025).
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