background: computed tomography (ct) scan is one the most useful devices in chest imaging. ct scan can be used in mediastinal abnormality, lungs, and pleural evaluations. according to the high prevalence and different causes of pulmonary nodules, we designed this study to evaluate the prevalence and the types of pulmonary nodules in noncancerous patients who underwent chest multi-detector ct (m...

OBJECTIVE X-ray attenuation coefficients are used in common radiological, pathological and spectroscopic examinations and in the determination of the radiation dose distribution in biological tissues. In radiology, these coefficients enable diagnosis by differentiating the abnormal tissues from the normal ones using their morphological structure and contrast differences. In this study, our aim ...

With continuing developments in computed tomography (CT) technology and its increasing use of CT imaging, the ionizing radiation dose from CT is becoming a major public concern particularly for high-dose applications such as cardiac imaging. We recently proposed a novel interior tomography approach for x-ray dose reduction that is very different from all the previously proposed methods. Our met...

X-ray computed tomography (CT) is a non-destructive, radiographic scanning technique that enables the visualisation of both the internal geometry and the composition of a workpiece; X-ray CT is therefore well suited for non-destructive inspection tasks. Several physical processes reduce the quality of CT images, and therefore influence both qualitative and quantitative analyses made from CT dat...

Corresponding Author: Nikolaos G. Baikoussis, MD; e-mail: [email protected] initial computed tomography (CT) are representative of thoracic trauma. Chest x-ray (Figure 1a) revealed a well circumscribed opacity in the left haemithorax recommending the contrast mediated thorax computed tomography (CT). The CT immediately performed shown left rib fractures and a D-shaped opacity in the left side of...

eart diseases are one of the leading cause of death in developed countries, for this reason an early diagnosis of the diseases is absolutely necessary. In order to do so, several tools are used, such as, electrocardiogram (EKG), chest X-Ray (Computed Tomography, CT), blood and stress tests, echocardiogram (ECG), cardiac magnetic resonance (MRI) and nuclear medicine (Single Photon Emission Compu...