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    Öğe
    Reference values for normal main portal vein diameter in subjects aged 1-80 years
    (SPRINGERNATURE, 2025) Binici, S; Aslan, F; Yanç, U; Eryılmaz, İ; Tahiroğlu, V; Beger, B; Uslu, N; Ten, B; Gölpınar, M; Beger, O
    Purpose Demographic features of subjects such as body mass index, height, weight, age or sex affect diameters of vessels like main portal vein (MPV). Some articles use different anatomical indicators like L1's body for creating a complete standard while diagnosing venous pathologies. This work aimed to display relationships of portal veins with L1 in normal subjects aged 1-80 years. Methods Abdominopelvic computed tomography views of 800 subjects were included in the work. The diameter of left (LPV) and right (RPV) branches of MPV, and the diameter of MPV at the distal level (MPV1), the middle level (MPV2), and the proximal level (MPV3) were measured. The transverse diameter of L1's body (L1TD) was measured. The ratios of vein diameters to L1TD were calculated. Results Age affected the diameters of portal veins and L1's body. L1TD increased until the early 50 s, but thereafter showed no statistically significant change. The diameters of portal veins increased from birth to approximately the early 50 s, but then decreased statistically. Moreover, MPV1 / L1TD, MPV2 / L1TD and MPV3 / L1TD generally showed a pattern of first increasing and then decreasing with advancing age, whereas RPV / L1TD and LPV / L1TD showed a pattern of decreasing with advancing age. L1TD was greater in males than females (p < 0.001). MPV1, MPV2, MPV3, RPV and LPV were statistically similar for both sexes (p > 0.05). Conclusion Age-specific diameter measurements and calculated ratios in our study may be useful for clinicians to diagnose disorders regarding portal system in pediatric and adult subjects.
  • [ X ]
    Öğe
    Topography, prevalence, and diameter of the parietal emissary foramen in the pediatric population
    (SPRINGER FRANCE, 2025) Çetin, M; Geyik, AM; Akşamoğlu, M; Üçler, N; Nehir, A; Aksoğan, Y; Gürses, ME; Gölpınar, M; Cihan, ÖF; Beger, O
    Purpose The study aimed to see changes in the topography, prevalence, and diameter of the parietal emissary foramen (PEF) in children with advancing age. Methods The 360 normal pediatric subjects aged 1-18 years, who underwent cranial computed tomography scans were included in the study. The diameter of PEF (PEFD), if present, was measured. Distances from PEF to sagittal (PEF-SS), lambdoid (PEF-LS), and coronal (PEF-CS) sutures were measured. Results Of 360 children, 269 subjects had PEF (74.7%) and three had multiple PEFs (0.8%). Bilateral, unilateral right-side, and unilateral left-side PEF incidences were determined as 44.2%, 20.3% and 10.3%, respectively. PEFD was determined to be 3.16 +/- 1.02 mm, and it remained unchanged after the early childhood period. PEFD > 5 mm was identified in six children (1.7%). PEF-SS, PEF-LS, and PEF-CS were measured as 5.44 +/- 2.74 mm, 35.50 +/- 6.44 mm, and 81.90 +/- 7.33 mm, respectively. According to age groups, PEF-LS and PEF-CS did not change after the early childhood period. PEF-SS did not correlate with pediatric age groups. Linear function was calculated as y = 2.531 + 0.065 x age for PEFD, and y = 76.918 + 0.515 x age for PEF-CS. Conclusions Approximately three in four children have a PEF. Its diameter remains unchanged after the early childhood period. A pediatric PEF is located approximately 5 mm lateral to the sagittal suture, 35 mm anterior to the lambdoid suture, and 80 mm posterior to the coronal sutures.