3D of Brain Shape and Volume After Cranial Vault Remodeling Surgery for Craniosynostosis Correction in Infants
Beatriz Paniagua1, Omri Emodi2, Jonathan Hill2
1Department of Psychiatry, University of North Carolina at Chapel Hill.
Insights
Craniosynostosis, a birth defect causing premature skull suture closure, leads to larger brain volumes in affected infants compared to healthy peers. This study highlights abnormal brain growth in infants with single suture craniosynostosis.
Area of Science:
- Pediatric Neurosurgery
- Developmental Biology
- Medical Imaging Analysis
Background:
- Craniosynostosis is a congenital condition where infant skull sutures close prematurely, impacting cranial development.
- Surgical correction aims to reshape the skull, potentially improving functional deficits like speech and motor delays.
- Assessing post-surgical brain development is crucial for understanding the long-term outcomes of craniosynostosis treatment.
Purpose of the Study:
- To analyze and compare brain growth and shape in infants with non-syndromic single suture craniosynostosis versus age-matched healthy controls.
- To investigate whether brain growth patterns differ in patients before and after surgical intervention.
- To utilize advanced 3D shape and volumetric analysis to quantify brain development in this patient population.
Main Methods:
- Utilized computed tomography (CT) scans from 8 pediatric patients with single suture craniosynostosis (sagittal and metopic).
- Employed 4D acceleration-based regression of 402 healthy control brain magnetic resonance images (MRIs) for age-matched comparisons.
- Applied SPHARM-PDM shape analysis to generate 3D point-based models for volumetric and shape metric analysis.
Main Results:
- Infants with single suture craniosynostosis exhibited larger brain volumes and altered shape metrics compared to age-matched healthy controls, both pre- and post-surgery.
- The study identified significant differences in brain growth patterns in patients with craniosynostosis.
- 3D shape and volumetric measurements confirmed abnormal brain growth trajectories in single suture craniosynostosis.
Conclusions:
- Brain growth is significantly affected in infants diagnosed with single suture craniosynostosis.
- The findings underscore the importance of detailed neuroimaging analysis to assess the impact of craniosynostosis on brain development.
- Further research into the long-term neurodevelopmental consequences following surgical correction is warranted.
Abstract:
The skull of young children is made up of bony plates that enable growth. Craniosynostosis is a birth defect that causes one or more sutures on an infant's skull to close prematurely. Corrective surgery focuses on cranial and orbital rim shaping to return the skull to a more normal shape. Functional problems caused by craniosynostosis such as speech and motor delay can improve after surgical correction, but a post-surgical analysis of brain development in comparison with age-matched healthy controls is necessary to assess surgical outcome. Full brain segmentations obtained from pre- and post-operative computed tomography (CT) scans of 8 patients with single suture sagittal (n=5) and metopic (n=3), non-syndromic craniosynostosis from 41 to 452 days-of-age were included in this study. Age-matched controls obtained via 4D acceleration-based regression of a cohort of 402 full brain segmentations from healthy controls magnetic resonance images (MRI) were also used for comparison (ages 38 to 825 days). 3D point-based models of patient and control cohorts were obtained using SPHARM-PDM shape analysis tool. From a full dataset of regressed shapes, 240 healthy regressed shapes between 30 and 588 days-of-age (time step = 2.34 days) were selected. Volumes and shape metrics were obtained for craniosynostosis and healthy age-matched subjects. Volumes and shape metrics in single suture craniosynostosis patients were larger than age-matched controls for pre- and post-surgery. The use of 3D shape and volumetric measurements show that brain growth is not normal in patients with single suture craniosynostosis.
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