TY - JOUR
T1 - An Association Between Fetal Subarachnoid Space and Various Pathologies Using MR Imaging
AU - Onn-Margalit, Lior
AU - Weissbach, Tal
AU - Gafner, Michal
AU - Fried, Shalev
AU - Wandel, Ayelet
AU - Ziv-Baran, Tomer
AU - Katorza, Eldad
N1 - Publisher Copyright:
© 2024 by the authors.
PY - 2024/11
Y1 - 2024/11
N2 - Background/Objectives: This study aimed to explore a relationship between the fetal subarachnoid space (SAS) width and various fetal pathologies, employing fetal brain MRI scans. Methods: A retrospective collection of fetal brain MRI scans of 78 fetuses was performed with sonographic indications of microcephaly, macrocephaly, or fetal growth restriction (FGR), during a 7-year period at a single tertiary center. The SAS width (named the SAS index) was manually measured in millimeters in ten specific anatomical locations (four in the axial plane and six in the coronal plane), and then converted to centiles by comparing it to (previously collected) data of apparently healthy fetuses. We evaluated the median SAS centiles using the Kruskal–Wallis and Mann–Whitney U tests for statistical comparison. Results: Seventy-eight subjects (mean gestational age of MRI scan 34.2 ± 2.2 weeks) were evaluated. The median SAS centiles were consistently higher in the macrocephaly group compared to the microcephaly group in all ten anatomical locations (statistically significant except coronal left inferior temporal gyri). Most pronounced difference was displayed in the insula gyri (axial and coronal). The median SAS centiles were higher in the microcephaly group when compared with FGR across all ten anatomical locations (all were statistically significant except for coronal frontal and insula gyri), and the maximal difference was found in the frontal gyri of both planes. The median SAS indexes (IQR) of the three groups in millimeters: macrocephaly 91.55 (86.35–101.05), microcephaly 59.46 (50.00–66.91), and FGR 53.21 (49.71–59.10), p < 0.001. Conclusions: We found a statistically significant association between the fetal subarachnoid space and various fetal pathologies: macrocephaly, microcephaly, and FGR.
AB - Background/Objectives: This study aimed to explore a relationship between the fetal subarachnoid space (SAS) width and various fetal pathologies, employing fetal brain MRI scans. Methods: A retrospective collection of fetal brain MRI scans of 78 fetuses was performed with sonographic indications of microcephaly, macrocephaly, or fetal growth restriction (FGR), during a 7-year period at a single tertiary center. The SAS width (named the SAS index) was manually measured in millimeters in ten specific anatomical locations (four in the axial plane and six in the coronal plane), and then converted to centiles by comparing it to (previously collected) data of apparently healthy fetuses. We evaluated the median SAS centiles using the Kruskal–Wallis and Mann–Whitney U tests for statistical comparison. Results: Seventy-eight subjects (mean gestational age of MRI scan 34.2 ± 2.2 weeks) were evaluated. The median SAS centiles were consistently higher in the macrocephaly group compared to the microcephaly group in all ten anatomical locations (statistically significant except coronal left inferior temporal gyri). Most pronounced difference was displayed in the insula gyri (axial and coronal). The median SAS centiles were higher in the microcephaly group when compared with FGR across all ten anatomical locations (all were statistically significant except for coronal frontal and insula gyri), and the maximal difference was found in the frontal gyri of both planes. The median SAS indexes (IQR) of the three groups in millimeters: macrocephaly 91.55 (86.35–101.05), microcephaly 59.46 (50.00–66.91), and FGR 53.21 (49.71–59.10), p < 0.001. Conclusions: We found a statistically significant association between the fetal subarachnoid space and various fetal pathologies: macrocephaly, microcephaly, and FGR.
KW - fetal growth retardation
KW - macrocephaly
KW - magnetic resonance imaging
KW - microcephaly
KW - subarachnoid space
UR - http://www.scopus.com/inward/record.url?scp=85210182191&partnerID=8YFLogxK
U2 - 10.3390/diagnostics14222535
DO - 10.3390/diagnostics14222535
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C2 - 39594200
AN - SCOPUS:85210182191
SN - 2075-4418
VL - 14
JO - Diagnostics
JF - Diagnostics
IS - 22
M1 - 2535
ER -