Evaluation of the Brain Indexes of Subjects with and without Brain Atrophy Using Computed Tomography

• Published in: Journal of the Anatomical Society of India 2022-10, Vol.71 (4), p.295-302
• Main Authors: Öksüzler, Mahmut, Polat, Sema, Tunc, Mahmut, Vuralli, Duygu, Göker, Pinar
• Format: Article
• Language: English
• Subjects: CT imaging
• ISSN: 0003-2778; 2352-3050
• DOI: 10.4103/jasi.jasi_20_22

Introduction: This study was undertaken to determine the values of brain indexes using computed tomography (CT) in our population. Material and Methods: This study was carried out on the 520 senior subjects (196 subjects having brain atrophy and 324 subjects having no brain atrophy) aged 60-90 years. Measurements of the brain indexes were taken from subjects having axial brain CT image in the radiology department. Furthermore, the data were analyzed according to age and gender. Results: The means and standard deviations of the measurements were as follows: the maximum distance between anterior horns, 37.35 ± 3.76 mm; minimum bicaudate nuclei distance, 20.76 ± 3.78 mm; maximum internal skull diameter, 135.66 ± 6.51 mm; maximum internal diameter of the frontal bone, 103.23 ± 6.23; internal skull diameter measured along the same line, 116.28 ± 6.60 mm; maximum external diameter of the skull, 144.08 ± 5.93 mm; and cella media width, 35.88 ± 6.93 mm; and the indices were calculated and found as follows: Huckman number, 58.11 ± 6.99 mm; bifrontal index, 0.36 ± 0.03; bicaudate frontal index, 0.55 ± 0.07; bicaudate index, 0.18 ± 0.03; bicaudate temporal index, 0.15 ± 0.03; and Schiersmann's index (SI), 4.22 ± 1.16 in subjects having brain atrophy. The same values were measured as 32.28 ± 3.19 mm; 15.32 ± 3.05 mm; 133.67 ± 6.71 mm; 102.05 ± 6.13 mm; 113.12 ± 6.04 mm; 141.14 ± 6.12 mm; 28.92 ± 5.79 mm; 47.59 ± 5.63 mm; 0.32 ± 0.03; 0.47 ± 0.08; 0.14 ± 0.03; 0.11 ± 0.02; and 5.09 ± 1.13 in healthy elderly subjects, respectively. There was a significant difference in all measurements (except SI) (P < 0.05). Discussion and Conclusion: The brain index dimensions of Turkish population provide important and useful knowledge for the clinicians in terms of comparison of abnormalities and atrophy of the brain.