introduction the present work describes a study in which, based on patient dose measurements, thermoluminescent dosimeters were used to obtain the diagnostic reference level arising from panoramic radiography. materials and methods ten panoramic units and a sample of 15 patients per x-ray unit were studied. two thermoluminescent dosimeter chips were placed on the skin surface of selected organs...

background: chest radiography is one of the most usual diagnostic tools for respiratory distress. objective: the purpose of this study is to assess the specificity, sensitivity and clinical value of chest radiography of neonates with respiratory distress.patients and methods: a descriptive- analytical study was conducted on 102 neonates that were in neonatal intensive care unit of imam reza and...