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International Journal of Recent Trends in Science and Technology, ISSN 2277-2812 E-ISSN: 2249-8109

Volume 16, Issue 2, Sept 2015 pp 281-282

Research Article

Morphometric evaluation of crista galli

Lenon Jason D’Souza1, Romina Geraldine D’Souza2, Ram ShenoyBasti3, Nikrish Hedge4, H B Suresh5

1,2,4Resident, 3Associate Professor, 5Professor, Department of Radio diagnosis, Father Muller medical College, Mangalore, Karnataka, INDIA.

Introduction and Objectives: Crista galli is a large triangular midline process arising from the surface of the cribriform plate anchoring the falx cerebri in the cranial cavity. Presenting with severe frontal headaches, sinusitis involving the pneumatised CG shows little response to drug therapy necessitating endoscopic surgical treatment. However, there is a paucity of literature on the same. Thus study aims to describe the anatomic characteristics and variations of the Crista galli as well as the factors which affect its pneumatisation which, may guide clinical decision making and management. Materials and Methodology: Restrospective analysis of 500 Non contrast CT scans of the brian acquired on 16 slice GE light speed CT scanner between October 2014 and January 2015 was done .We observed height, position relative to the cribriform plate, degree of pneumatisation, and cell of origin for the pneumatisation in CG. We also analysed the relationship between several factors (age, sex, and position of CG) and pneumatisation of CG. Results and Conclusion: Mean age of our study population was 46.9 yrs ± 20.5 years. Study subjects were divided into two categpries i.e. <18 yrs and > 18 years of age. Type 1 crista galli was the most common type in our study(58.7%) followed by type 2 and type 3 with frequencies of 38.1% and 3.2% respectively. 14.9% of type 1,22.5 % of type 2 and 25 % of type 3 were pneumatised. If pneumatised, most commonly it is an extension of right frontal (n=46) or left frontal sinuses. (n=43)