Justification of CT for Individual Health Assessment of Asymptomatic Persons: A World Health Organization Consultation.

An international expert consultation was convened by the World Health Organization (WHO). The purpose of the meeting was to review the use of CT in examining asymptomatic people. This is often referred to as individual health assessment (IHA).

Radiation doses to Norwegian heart-transplanted patients undergoing annual coronary angiography.

Heart-transplanted patients in Norway undergo annual coronary angiography (CA). The aims of this study were to establish a conversion factor between dose-area product and effective dose for these examinations and to use this to evaluate the accumulated radiation dose and risks associated with annual CA. An experienced cardiac interventionist performed a simulated examination on an Alderson phantom loaded with thermoluminescence dosemeters.

Radiation doses to children with shunt-treated hydrocephalus.

Background: Children with shunt-treated hydrocephalus are still followed routinely with frequent head CT scans.

Objective: To estimate the effective dose, brain and lens doses from these examinations during childhood, and to assess dose variation per examination.

Materials And Methods: All children born between 1983 and 1995 and treated for hydrocephalus between 1983 and 2002 were included.