Sonographic Measurement of the Spleen in the healthy adult Nigerian Population in Enugu State, Nigeria

Abstract

Context: measurement of the spleen with ultrasound in order to obtain normal lengths (nomogram) is possible because ultrasound is devoid of ionizing radiation, it is real time, readily available, cheap easily reproducible and has high specificity and high sensitivity values.

Aim: Sonographic measurement of the spleen was carried out in 500 healthy adult Nigerians in Enugu State in order to determine the nomogram for the spleen and to correlate the measurements with the sex, age, height, weight and body mass index, so as to find out whether there is a significant difference in the size of this organ as compared to other races in the reviewed literature.

Materials and Methods: Measurement of the spleen was carried out in 500 healthy adult Nigerians comprising 195 males (39%) and 305 females (61%). The individuals were not less than twenty (20) years as at the time of data collection. The data was analyzed using SPSS statistical package version 20.0. The mean, median, variance, standard deviation of the spleen sizes were evaluated and correlated with the age, sex, weight, height and body mass index of the subjects.

Results: the mean splenic length for males was 104.1±14.5mm and 103.3±13.4mm for females with P values of 0.515. The mean splenic width was 62.9±12.8mm for males and 60.3±10.6 for females with P values of 0.013 which is significant showing that males have longer splenic width than females. There was a significant relationship between age and spleen width in both sexes with P values of 0.001. There is also a significant correlation of the spleen dimension with body mass index in both sexes with P values <0.05. Furthermore, the result shows that there was a correlation of the splenic length and width with age. There was also positive correlation of the splenic length with Body Mass Index P values 0.014, height P values 0.000 but not with subject’s weight P values 0.311.

Conclusion: There is significant correlation of the spleen width with height, weight but not with body mass index. Males have greater splenic width than females. There is also a significant correlation of the splenic length and width with age.