E1067. Incidental Maternal Findings on Fetal MR: A Single Center Retrospective Study
Authors
Martha Ruiz;
University of Alberta
Mitchell Wilson;
University of Alberta
Gavin Low;
University of Alberta
Objective:
The purpose of this study was to evaluate the type and frequency of incidental maternal findings during fetal MR imaging.
Materials and Methods:
Retrospective single center study including all consecutive fetal MRs between July 2017 and May 2021 at a tertiary institution. Two fellowship trained radiologists independently reviewed studies to determine the type and frequency of incidental maternal findings of both no clinical significance (requiring no further follow up) and of clinical significance (requiring further follow-up, work-up and/or management). Differences in acquisition were resolved by two-reader consensus. Nondiagnostic MRs or abdominal MRs indicated for maternal complications were excluded from review.
Results:
A total of 455 consecutive fetal MRs performed in 429 women were included. Mean age was 30 years (SD 5.5 years). At least one incidental maternal finding was identified in 58% (265/455) of studies. Umbilical hernias (35%), maternal hydronephrosis (19%), and maternal hydroureter (15%) were most common. Only two studies (0.5%) showed clinically significant incidental maternal findings (pancreatic pseudocyst and ovarian cyst).
Conclusion:
Incidental maternal findings are common on fetal MR imaging but rarely require further follow-up, work-up and/or management.
