Introduction: Computed tomography (CT) has numerous applications in clinical procedures but its main problem is its high radiation dose to the patients compared to other imaging modalities using x-ray. CT delivers approximately high doses to the nearby tissues due to the scattering effect, fan beam (beam divergence) and limited collimator efficiency. The radiation dose from multi-slice scanners...

objective(s) bupropion is an atypical antidepressant that is widely used in smoke cessation under fda approval. the study of synaptic effects of bupropion can help to finding out its mechanism(s) for stopping nicotine dependence. in this study the effects of perinatal bupropion on the population spike (ps) amplitude of neonates were investigated. materials and methods hippocampal slices were pr...

The concept of slice regular function over the real algebra $$\mathbb {H}$$ quaternions is a generalization notion holomorphic complex variable. Let $$\varOmega \subset \mathbb be domain, i.e., non-empty connected open subset {H}=\mathbb {R}^4$$ . Suppose that $$\varOmega$$ intersects {R}$$ and invariant under rotations around A $$f:\varOmega \rightarrow if it class $$\mathcal {C}^1$$ and, for ...

Introduction: The rapid use of computed tomography (CT) scan is of great concern, due to increase in patients’ dose. Optimization of CT protocol is a vital issue in dose reduction. This study aimed to optimize radiation dose in cranial CT and assess modifications in image quality under radiation dose reduction. Material and Methods: A poly(me...

Background: This study assessed the application value of 64-slice spiral computed tomography angiography (CTA) in a follow-up evaluation of patients receiving coronary stent implantation. Materials and Methods: A total of 468 patients who underwent percutaneous coronary intervention (PCI) at our hospital between January 2013 and October 2016 were selected for this study. Coronary angiography an...