ABSTRACT
The corpus callosum [CC] is an important structure of connecting the two cerebral hemispheres. The purpose of this study was to examine the morphometry of the CC of normal cases and its relationship with gender and age. Morphometric measurements of the corpus callosum were made on MR imaging in the mid-sagittal plane in 42 male and 48 female total 90 healthy subjects, age range was 6-17 year-old. Age of the cases were divided into three group as 6-9, 10-13 and 14-17 year-old. The length was measured by drawing a straight line at greatest antero-posterior diameter of CC, a perpendicular at its midline, anterior, posterior and medium segments of CC were measured. In addition as a result of these morphometric measurements index of corpus callosum [CCI] was calculated for every cases. Statistical analysis was performed by One-Way ANOVA- Tukey test, Independent Sample t test, Kruskal-Wallis test and Mann - Whitney U test. Without considering sex between the age group, antero-posterior, anterior, posterior and medium segments diamaters of CC was found statistically significance [p < 0.05] while analysis of CCI values was not found significant [p > 0.05]. These datas can be used as morphometric guide, for evaluation of the CC specially in years 6-17 age group
ABSTRACT
To determine the value of diffusion-weight MRI findings in patients with lumbar disc degeneration. Lumbar discs of 52 consecutive patients were imaged at 1.5 T MR including T2 and diffusion weighted imaging. Apparent diffusion coefficient [ADC] values, T2 signal intensity and height of the five lumbar intervertebral discs were measured and disc and endplate degenerations were graded. The mean ADC was 0.90x10H[3] mm[2]/s +/- 0.27 [ +/- S.D.] and the mean T2 was 93.98 +/- 32.32. There was significant correlation between mean diffusion and the T2 signal intensity values of all lumbar discs. The age of the cases was negatively correlated with the T2 signal intensities and ADC values and positively correlated with the disc height of from L1-L2 to L5-S1. There was no significant correlation between the disc height of from L1-L2 to L5-S1 and the measured ADC values and the T2 signal intensities. Evaluation of lumbar disc degeneration with diffusion weight MRI can be a useful procedure in the clinical practice for patients with several lumbar symptoms. There is need for the improvement of image quality of diffusion weighted MRI imaging for more precise diagnosis of the lumbar diseases
Subject(s)
Humans , Male , Female , Diffusion Magnetic Resonance Imaging , Lumbar Vertebrae , Intervertebral DiscABSTRACT
Large numbers of medical student are reported to be suffering from emotional health problems in recent years. Its severity has also increased throughout the world. The aim of the current study was to determine the prevalence of emotional disorders [ED] and to assess risk factors among medical students. A total of 493 students were included in the current cross sectional study. The Twelve Item General Health Questionnaire [GHQ-12] was voluntarily answered by medical students in the first to the fifth year class.: A total of 27.8% of medical students were found to have emotional disorders [ED] in the presented study. Factors found to have a significant association with ED were relationship of the respondents with their parents, siblings, lecturers, course mates, boy/girlfriend as well as pressure prior to examinations and periods of training in medical school. No difference was found between gender and age groups. Current results showed the prevalence of emotional disorders [ED] in crucial levels among the medical students. It is suggested that medical schools authorities should be aware of these problems and take effective measures to address them