Feasibility of Non-Gated Dynamic Fetal Cardiac MRI for Identification of Fetal Cardiovascular Anatomy.

Autor:	Geiger J; Department of Diagnostic Imaging, University Children's Hospital Zurich, Zurich, Switzerland., Tuura RO; Center for MR-Research, University Children's Hospital Zurich, Zurich, Switzerland., Callaghan FM; Center for MR-Research, University Children's Hospital Zurich, Zurich, Switzerland., Burkhardt BEU; Pediatric Heart Center, University Children's Hospital Zurich, Zurich, Switzerland., Kellenberger CJ; Department of Diagnostic Imaging, University Children's Hospital Zurich, Zurich, Switzerland., Valsangiacomo Buechel ER; Pediatric Heart Center, University Children's Hospital Zurich, Zurich, Switzerland.
Jazyk:	angličtina
Zdroj:	Fetal diagnosis and therapy [Fetal Diagn Ther] 2023; Vol. 50 (1), pp. 8-16. Date of Electronic Publication: 2023 Jan 07.
DOI:	10.1159/000528966
Abstrakt:	Introduction: The aim of this study was to evaluate the feasibility of identifying the fetal cardiac and thoracic vascular structures with non-gated dynamic balanced steady-state free precession (SSFP) MRI sequences. Methods: We retrospectively assessed the visibility of cardiovascular anatomy in 60 fetuses without suspicion of congenital heart defect. Non-gated dynamic balanced SSFP sequences were acquired in three anatomic planes of the fetal thorax. The images were analyzed following a segmental approach in consensus reading by an experienced pediatric cardiologist and radiologist. An imaging score was defined by giving one point to each visualized structure, yielding a maximum score of 21 points. Image quality was rated from 0 (poor) to 2 (excellent). The influence of gestational age (GA), field strength, placenta position, and maternal panniculus on image quality and imaging score were tested. Results: 30 scans were performed at 1.5T, 30 at 3T. Heart position, atria, and ventricles could be seen in all 60 fetuses. Basic diagnosis (>12 points) was achieved in 54 cases. The mean imaging score was 16.8+/-3.8. Maternal panniculus (r = -0.3; p = 0.015) and GA (r = 0.6; p < 0.001) correlated with imaging score. Field strength influenced image quality, with 1.5T being better than 3T images (p = 0.012). Imaging score or quality was independent of placenta position. Conclusion: Fetal cardiac MRI with non-gated SSFP sequences enables recognition of basic cardiovascular anatomy. (© 2023 The Author(s). Published by S. Karger AG, Basel.)
Databáze:	MEDLINE
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