The fractal exponents used to quantify the complexity of cranial sutures were computed for 17 coronal and 17 sagittal sutures of adults from different populations, using the box-counting algorithm. This paper discusses the main sources of error for the fractal exponents, and gives the error estimates. We then compare our results with those obtained by other authors. We suggest that the usual error estimates implied by the standard deviation for the regression line are too low. We emphasize the crucial role played by the choice of regression line in the log-log plot. For the coronal and sagittal sutures we found mean fractal dimensions of 1.48 and 1.56, respectively. Our values are close to the value for Brownian random walk.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2100241 | PMC |
http://dx.doi.org/10.1111/j.1469-7580.2006.00529.x | DOI Listing |
Ecotoxicol Environ Saf
January 2025
Department of Stomatology, the Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, No. 242, Guangji Road, Suzhou, Jiangsu Province 215000, China. Electronic address:
Exposure to 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) in utero can result in osteogenic defect during palatogenesis, but the effects on other craniofacial bones and underlying mechanisms remain to be characterized. By treating pregnant mice with TCDD (40 μg/kg) at the vital craniofacial patterning stages (embryonic day 8.5, 10.
View Article and Find Full Text PDFNeurosurg Focus
January 2025
18Department of Neurosurgery, Washington University School of Medicine, St. Louis, Missouri.
Objective: Patients with a history of surgery for single-suture craniosynostosis (SSC) as an infant often wish to participate in sports later in childhood. However, there are no established guidelines from neurosurgeons and craniofacial surgeons to guide parents in which sports their child should or should not participate. Therefore, this study aimed to evaluate the attitudes and practice patterns of experienced neurosurgeons and craniofacial surgeons regarding the counseling of caregivers of these patients about sports participation.
View Article and Find Full Text PDFNeurosurg Focus
January 2025
Departments of3Plastic Surgery and.
Objective: The surgical management of craniosynostosis varies without consensus on technique or standard outcomes reporting. The authors of this study aimed to investigate current surgical management of craniosynostosis in the United States.
Methods: Two hundred seventy-five surgeons actively treating craniosynostosis in the United States were surveyed.
Cureus
November 2024
Department of Anatomy, National and Kapodistrian University of Athens School of Medicine, Athens, GRC.
This study aims to review the existing literature on cerebral cortical changes in craniosynostosis during the months of August and September 2023. It focuses on alterations occurring in cases of both syndromic and non-syndromic forms of the disease. In particular, variations in volume, size, and structure (e.
View Article and Find Full Text PDFWorld Neurosurg
December 2024
College of Medicine, King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia; King Abdullah International Medical Research Center, Ministry of National Guard, Riyadh, Saudi Arabia; Department of Pediatrics Neurosurgery, King Abdullah Specialist Children Hospital, Ministry of National Guard, Riyadh, Saudi Arabia.
Background: Sutural anatomy variation has long been a topic of debate among anatomists, paleontologists, and morphologists. While the exact reasons for the prevalence of this variance remains a topic of ongoing discussion, developmental and genetic factors are hypothesized to be the main reasons. Understanding the morphology and occurrence of normal sutural variations in pediatric patients is essential to making the right diagnosis, where a misinterpretation of a sutural bone may lead to an inaccurate assessment, completely misleading the diagnostic process.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!