This paper aims to describe the stereolithographic rapid prototyping of the ear prosthesis in an anotia case and to evaluate the advantages and disadvantages. Virtual model of the patient’s head was produced from the computerized tomography scan of the patient. Three-dimensional image of the healthy contralateral ear was extracted, inverted and re-located on the virtual model. Data was transfer...

Positron emission computerized tomography (PET) based on Ordered Subsets Expectation Maximization (OS-EM) is usually used to computerized tomography, which imposes the radionuclide to emission positron. But it also has some disadvantage as costing long time and bad reconstruction quality. Filtered Back Projection (FBP) that has many advantages such as simple structure and short reconstruction t...

INTRODUCTION Studies about the use of sheep in surgical training and experimental otologic surgery are rare. This study intends to contribute to the knowledge on this field. AIM To study sheep inner ear structures using computerized tomography and serial cross-sections to collect more accurate morphometric data to compare sheep and human ears. MATERIAL AND METHODS This descriptive study com...

Reducing the radiation in computerized tomography is today a major concern in radiology. Low dose computerized tomography (LDCT) offers a sound way to deal with this problem. However, more severe noise in the reconstructed CT images is observed under low dose scan protocols (e.g. lowered tube current or voltage values). In this paper we propose a Gamma regularization based algorithm for LDCT im...

Patients who received endovascular therapy (EVT) for acute ischemic stroke with large vessel occlusion (AIS-LVO) and large-scaled core infarct volume in the time window were analyzed. Literature data reviewed. Results showed that although EVT is first choice to AIS-LVO, patients often have poor prognosis. Alberta program early CT score (ASPECTS) based on computerized tomography angiography sour...