PURPOSE It is well recognized that therapeutic irradiation can result in bone damage. However, long-term bone toxicity associated with computed tomography (CT) performed during interventional angiography has received little attention. The purpose of this study was to determine the prevalence of osteoporosis and trabecular microstructural changes in patients after transarterial chemoembolization...

During Computed Tomography (CT) scan examinations, it is important to ensure a good diagnosis by providing the maximum information detect pathologies and this can be done with reduced dose. In respect, several methods of dose reduction have been studied evaluated. This work investigates effect tube voltage while varying current on image quality radiation at Chest CT examination. study was condu...

primary and widely in use computed tomography (ct) dose descriptor is a volumetric ct dose index (ctdiv) that is usually measured by a pencil ionization chamber with active length of 100mm and polymethyl methacrylate (pmma) phantom. ctdiv depends on scan parameters such as mas, kv, collimation, tube rotation time but is independent of patient’s size and shape. for the purpose of a good estimati...

Introduction: Increasing CT scan application increased the cancer risk in pediatrics in recent decays. Imaging centers approach for diagnosis of disease cause to different radiation dose to patients.  Because  of  rapid  pediatrics  body  growth,  the  most  important  challenge to determining the radiation dose is wide variations of size in different ages. Thus, we used Size...

background: to suggest south india ct diagnostic reference levels (drls) by collecting radiation doses for the most commonly performed ct examinations. materials and methods: a pilot study investigated the most frequent ct examinations. 110 ct sites were asked to complete a survey booklet to allow the recording of ct parameters for each of 3 ct examinations during a 1 year time period. dose dat...

Background: To suggest South India CT diagnostic reference levels (DRLs) by collecting radiation doses for the most commonly performed CT examinations. Materials and Methods: A pilot study investigated the most frequent CT examinations. 110 CT sites were asked to complete a survey booklet to allow the recording of CT parameters for each of 3 CT examinations during a 1 year time period. Dose...