Abstract
A cross-sectional study was carried out in the Department of Radiodiagnosis and Imaging at BP Koirala Institute of Health Sciences (BPKIHS), Nepal using a purposive sampling method. We included 96 adult patients (≥18 years) who underwent CT scan of the head for any clinical indications. All those participants below 18 years, inadequate visualization or erosions of skull base foramina, and/or not consenting were excluded. Appropriate statistical calculations were done using the statistical package for social sciences (SPSS), version 21. The P-value of less than 0.05 was considered statistically significant. The mean length, width, and area of FO was 7.79±1.10mm, 3.68±0.64mm, and 22.80±6.18mm2, respectively. The mean length, width, and area of FS was 2.38±0.36mm, 1.94±0.30mm, and 3.69±0.95mm2, respectively. Similarly, the mean height, width, and area of FR was 2.41±0.49mm, 2.40±0.55mm, and 4.58±1.49mm2, respectively. The male participants had statistically significant higher mean dimensions of FO and FS (P<0.05) than the female participants. There were statistically insignificant correlations of dimensions of these foramina with age and between the left and right side of each foraminal dimensions (P>0.05). The sex-based difference in dimensions of FO and FS should be clinically considered in evaluating the pathology of these foramina. However, further studies using objective assessment of foraminal dimensions are required to draw obvious inferences.
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