OBJECTIVE To determine the film-retake rates and causes in digital radiography comparison to conventional X-rays method. STUDY DESIGN Comparative study. PLACE AND DURATION OF STUDY Radiology Department, Aga Khan University Hospital, Karachi, from January 2004 to December 2006. PATIENTS AND METHODS X-rays of different body parts, conducted during the year 2004, with conventional radiograph...

background: a study has been conducted to assess two useful radiation protection indices, the annual per-capita effective dose equivalent (aed) and the genetically significant dose (gsd), from conventional diagnostic radiography in 10 counties with more than 1,886,000 inhabitants in khorasan province in iran. materials and methods: the health centre authorities of khorasan province were asked t...

introduction: diagnosis of tuberculosis under the national tuberculosis control program (ntcp) is based on microscopic examination of sputum. the main objective of this study was to assess the perception of physicians and patients regarding the importance of chest x-ray in diagnosing pulmonary tuberculosis with a view to suggest corrective measures. materials & methods: one hundred and eighty t...

introduction: chest x-ray (cxr) is the simplest diagnostic tool of community acquired pneumonia (cap), but it has some limitation. therefore, the aim of this study is comparing the diagnostic accuracy of cxr and chest ultrasonography (cus) in detection of cap. methods: in the present study, a consecutive sample of suspected patients with cap was underwent cus, cxr, and chest computed tomography...

background: the radiation doses resulting from diagnostic x-ray examinations are routinely measured in terms of entrance surface dose (esd) and effective dose (ed). in this study, for the purpose of radiation protection, the radiation doses received from digital chest x-ray examination were evaluated in terms of esd and ed. material and methods: the ed was calculated by using the mcnp monte car...

background: although it is one of the most toxic nonradioactive elements, mercury is widely used in dental amalgam. mercury is a toxic element which can damage various organs such as central nervous system, renal, respiratory and hematologic systems. the adverse health impacts associated to exposure to some common sources of electromagnetic fields including laptop computers, mobile phones, mri ...