Abstract:
ntroduction: The asterion is a craniometric point in the norma
lateralis of skull situated at the confluence of parietal, temporal, and
occipital bones. The aim of this study is to determine the type and
mapping of asterion and its relation with transverse-sigmoid venous
sinus junction (TSSJ).
Materials and Methods: Sixty-one dry and intact adult human
skulls of unknown sex and age were used. The measurements were
implemented using stainless steel sliding vernier caliper. The data
were analyzed using SPSS version-20 and independent t-test analysis
was implemented. P< 0.05 was considered as statistically significant.
Results: In the study, type II was found to be the predominant
asterion type. There was statistically significant difference in
measurements of central thickness of right and left sides of
asterion (P ¼ 0.04, Eta squared ¼ 0.025). Besides, the TSSJ was
situated above the asterion and at the level of asterion in 39.34% and
60.66 of the cases, respectively.
Conclusions: The Northwest Ethiopian population has a high
incidence of type II asterion. In most of the cases, the TSSJ is
situated at the level of the asterion. The finding of the present
study may be useful to neurosurgeons to reduce the risk during
posterior cranial fossa surgeries. This work may also offer worthy
information to radiologists, anthropologists, anatomists, and forens
