Ocular volume correlated positively with the age of the patients to about 50 years after which some reduction was observed. We noted that males had slightly larger eyeballs in comparison to females, although not at statistical significant level.
Objective: The objective of this study is to document the abdominal ultrasound findings in HIV infected patients and compare it with their CD4+ count. Patients and method: 300 confirmed HIV positive patients had abdominal ultrasonography done at the University of Benin Teaching Hospital from November 2007 to January 2008. Each patient’s sonographic findings were correlated with their CD4+ category using the WHO’s HIV classification index. Result: Splenomegaly, hepatomegaly, renomegaly, hyperechoic splenic parenchyma, increased renal echogenicity and lymphadenopathy are among the common sonographic findings. However, few of these findings correlated statistically with the CD4+ count. Conclusion: The versatile diagnostic tool, ultrasound, should continue to be an important imaging equipment in several impoverished communities. In the evaluation of HIV infected patients, its use is invaluable and should be promoted.
Objective: To assess dental students' knowledge of dental radiation protection and practice as well as correlating their knowledge to practice on dental radiography. Materials and Methods: A cross-sectional questionnaire based study on radiation protection among dental students. Correct responses to the questions were allocated 1 mark while wrong response received no mark. Statistical analysis was performed using SPSS version 17 (Chicago, IL.). Pearson's coeffi cient correlation analysis was performed to establish relationship between various variables with the signifi cant level set at 5%. Results: The study was conducted among 78 fi nal year dental students, of which 32 were females and 46 were males. The mean score of the students on knowledge of radiobiology was 1.85 ± 1.19. Knowledge of radiation protection was abysmally poor with mean score of 0.92 ± 0.80 while the mean score of radiation protection practice was 2.69 ± 1.42. There was no signifi cant correlation between the number of radiographs taken and knowledge of radiation protection or practice. A greater proportion of students with ''good'' radiation protection knowledge in comparison to those with ''poor'' knowledge kept a distance of over 3 metres from the patients/X-ray tube, wore lead apron, used the lowest possible settings on the X-ray machine and used collimators. Most (75.6%) of the students thought they did not have adequate knowledge on radiation protection. Conclusion: There is need to expand the curriculum to provide better exposure to radiation protection and its practice, so that these students on graduation will be well grounded with the principle governing dental radiography.
Background:Pregnant women have been curious about the sex of their unborn child. The advent of ultrasound, its application into medicine, and the revolutionary changes in its resolution and function has led to the ability to assign a sex to these unborn children, thereby allaying the anxiety of these women but with consequent emergent ethical, moral, psycho-social, and medico-legal issues. The objectives were to determine the accuracy of sonographic prenatal sex determination, perform binary classification test, and the impact it has, including mis-diagnosis.Materials and Methods:A prospective prenatal sonographic sex determination study on 205 consecutive consenting pregnant women aged 20-40 years in a private hospital in Benin between August 2010 and October 2011. Questionnaires were administered to these women before and after the scan and the women were told the sex of the fetuses and their feelings on the determined sex recorded. The sex at birth was confirmed and compared to the scan determined gender by their case note and telephone. Relevant discussions during the scan and later on were recorded on the questionnaires. The statistical package used was SPSS version 17 and binary classification tests were performed.Results:The sensitivity (98.2%) and binary classification components values of prenatal sex determination were high with the sensitivity of detecting a female higher than that of males. Two males were misdiagnosed as females. Most of the women were happy even when the sex differed from that which they desired.Conclusion:Prenatal sonographic sex determination has a high sensitivity index. Consequently we advocate its use prior to more invasive sex tests.
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