Abstract
Traumatic brain injury (TBI) may happen due to impact, blast or rapid movement of the head. Among the many categorizations, brain injuries can be divided into coup and contrecoup injuries. When impact happens to head, cerebrospinal fluid (CSF) flows to the site of impact and therefore, cushions the brain. This causes positive pressure at coup site and negative pressure at the contrecoup site. This study has examined a human head model under frontal impact with a rigid body. The finite element analysis was conducted under different speeds of the impactor to obtain coup and contrecoup pressure for the brain. As the speed of the impact increases, the ratio of the negative contrecoup pressure to the positive coup pressure increases. It can be concluded that the increase in cushioning effect of CSF on the coup site of the impact comes with increasing negative contrecoup pressure which will add to the severity of contrecoup injury as the intensity of the impact escalates.
| Original language | American English |
|---|---|
| Title of host publication | Biomedical Sciences Instrumentation |
| Publisher | International Academic Express |
| Pages | 76-82 |
| Volume | 54 |
| ISBN (Print) | 978-1-7752455-1-3 |
| State | Published - Apr 2018 |
| Externally published | Yes |
Keywords
- traumatic brain injury
- head impact
- coup and contrecoup pressure
- CSF Cushioning Effect
Disciplines
- Biomedical Engineering and Bioengineering