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Original Research

Nig. J. Basic Appl. Sci.. 2012; 20(3): 208-212


Cephalometric Assessment of the Fourth Ventricles Using Computerized Tomography: A Five Year Study in Usmanu Danfodiyo University Teaching Hospital (UDUTH), Sokoto, North-Western Nigeria

J.D. Usman, G.H. Yunusa, S.A. Saidu, A.D. Zagga, . Bello, A. Abdulhameed, S.S. Bello, A.A. Tadros and S.M. Bello.




Abstract

The fourth ventricle is usually affected in posterior cranial fossa tumours and other intracranial and ventricular disorders. Therefore, accurate measurement of the fourth ventricle will go a long way in evaluating brain disorders and decision making prior to neurosurgical procedures. This, therefore, places high premium on the accuracy in the technique and equipment used in obtaining a good Computerised Tomography (CT) Scan of the brain. To provide baseline data for measurements of normal fourth ventricle using computed tomographic Scan. Measurement was made with Dragon V3.1.1. A total of 652 scan examinations of subjects were analyzed in this study. 434 (65.79%) of the subjects were males while 217 (34.21%) were females. (M: F ratio = 2:1).The mean length of the fourth ventricles was 9.55mm and mean width was 12.86mm. Maximum length was 13.95mm and minimum length was 5.1mm. Least width was 2.65mm and greatest width was 17.28mm. Thus, the difference between the lengths of the fourth ventricles was not statistically significant (p˃0.05), so also there was no statistically significant difference (p> 0.05) between the width of the fourth ventricles in males and females. In conclusion, this study has provided reference ranges for the normal values of the length and width of the fourth ventricle in male and female Nigerians.

Key words: Cephalometry, assessment, fourth ventricles, CT, Nigeria.






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