Modulating Electron Beam–Sample Interactions in Imaging and Diffraction Modes by Dose Fractionation with Low Dose Rates

Low-Dose Imaging Techniques for Transmission Electron Microscopy

Transmission electron microscopes have the ability to visualize almost any specimen at the nanoscale. Unfortunately, modified imaging protocols are needed when samples are composed predominantly of low atomic number elements. In this chapter we review several methods that are currently employed to mitigate the adverse effects caused by electron irradiation to materials at the interface of biolo...

Organ dose in kidney imaging with contrast media

Introduction:Intravenous urography (IVU) test includes high number of images and extended imaging size. These make IVU as a diagnostic method with high absorbed doses by sensitive organs such as intestine and gonads in pelvic-abdominal area. In this study absorbed doses of pelvic-abdomen sensitive organs such as Adrenal, Bladder, Colon and Gonads in IVU test. <stron...

Evaluation of some blood parameters alteration following low-dose radiation induced by Myocardial Perfusion Imaging

Purpose: With  increasing the usage  of  myocardial  perfusion  imaging  (MPI)  for  the diagnosis  of  ischemic  heart  disease,  we  aimed  to  evaluate  the  side  effects  of  low-dose  radiation  induced  by  this  technique  on blood elements, especially proteins and liver function factors.Materials and  Methods:  40  eligible  patients  (Mean  age:  54.6...

Investigation of the Entrance Surface Dose and Dose to Different Organs in Lumbar Spine Imaging

Background: Dose assessment using proper dosimeters is especially important in radiation protection optimization and imaging justification in diagnostic radiology.Objective: The aim of this study is to obtain the Entrance Skin Dose (ESD) of patients undergoing lumbar spine imaging using two thermoluminescence dosimeters TLD-100 (LiF: Mg, Ti) and GR-200 (LiF: Mg, Cu, P) and also to obtain the ab...

Radiotherapy Dose-Fractionation