ABSTRACT
Positron emission tomography [PET] has been utilized in numerous aspects of medicine since its introduction and development in 1970s. There has been a rapid improvement in imaging techniques and radiotracers in the last decade, which have enhanced the quality of PET in different biomedical research domains and patient care settings. In this editorial we will discuss applications of PET-computed tomography [CT]/magnetic resonance imaging [MRI] as well as other radiotracers in different variety of malignant and non-malignant diseases such as cardiovascular, central nervous system, inflammatory and systemic diseases and review new concepts applicable to this imaging modality
ABSTRACT
Introduction and Aims: since the health can affect the various aspects of life, the purpose of this study was to investigate the relationship between general health and improvement motivation with educational success among the Fasa University of Medical Sciences students
Materials and Methods: 372 students of Fasa University of Medical Sciences were randomly selected for a cross-sectional study. They completed the demographic questionnaire of 28 items Goldberg health and Herman's achievement motivation. Having an average mark of 15 out of 20 and not failed in any subjects at any time were the criteria for educational achievement in this study. Paired T test, ANOVA and chi-square test were used for comparing the groups analytically
Results: mean score for success motivation among the students who entered the university in 2013 was 83.5+/-7.7, in 2012: 71.9+/-7.7, in 2011: 72.6+/-6.9 and in 2010: 72.1+/-5.1 [P<0/001]. Students' field of study and their interest were related to the score of achievement motivation, so that the highest scores belonged to Hygiene 78.1+/-5.9 [P<0/01], Medicine 74.6+/-6.1 [P<0/01] and surgical technology 69.7+/-6.8 [P<0/05] respectively. 69.7 percent of students had mental health. In comparison of 4 parts of Goldberg questionnaire and the score of: anxiety, depression, health disorder and social withdrawal, there was a reverse meaningful correlation between the last semester average with depression score [r= -0/33, P<0/01] and social performance [r= -0/29, P<0/05]
Conclusion: about 30 percent of students had low health score. There was a relationship between educational achievement and depression. So there is a demand for a precise planning regarding the medical students' training program in order to improve the educational achievements and health
ABSTRACT
The pulsatility index [PI] shows continuous blood flow to the end organs and is a significant factor believed to decrease in aortic coarctation. Correction of this factor is of great importance in the treatment ofstenotic lesions of the aorta. However, there are minimal data regarding the trend of changes in the PI after stent implantation. Furthermore, the association between the PI and other echocardiographic indices in patients undergoing stent implantation is unclear. This study was designed to evaluate changes in the PI following stenting and its correlation with other echocardiographic indices. Twenty-three patients with a diagnosis of aortic coarctation consecutively underwent two-dimensional and Doppler echocardiographic imaging modalities twice [before and after stenting]. The patients were divided into two groups based on the percentage of increase in the PI after stenting [ 50%]. The relation between the post-stenting PI and the baseline echocardiographic indices was assessed. The PI was increased from 0.89 [SD = 0.30] to 1.75 [SD = 0.51] after stenting [p value < 0.001]. Baseline diastolic/systolic velocity [D/S velocity] ratio of the abdominal aorta [p value = 0.013], mean velocity [p value = 0.033], and peak gradient of the descending aorta [p value = 0.033] were significantly higher in the patients with >/= 50% increase in the PI after stenting. Our findings showed that elevation in the PI after stenting was a predictable criterion in patients with aortic coarctation: it was predicted by some baseline clinical and echocardiographic indices. Baseline D/S ratio velocity of the abdominal aorta, mean velocity and peak gradient of the descending aorta, and baseline systolic blood pressure were the statistically significant indices to predict >/= 50% increase in the PI in our patients