ON DOSIMETRY OF RADIODIAGNOSIS FACILITIES,MAINLY FOCUSED ON COMPUTED TOMOGRAPHY UNITS

摘要

The "talk" has been thought and structured in three parts: 1. Basics of image acquisition using computed tomography technique. 2. Effective Dose calculation for a patient and its assessment using BERT concept.3. Recommended actions of getting a good compromise in between related dose and the image quality. The aim of the work is that the reader to become acquainted with the CT technique and able of understanding the Effective Dose calculation and its conversion into time units using the BERT concept. A good image quality involves several factors which take into account the fact that the dose should be "as low as reasonable achievable" (ALARA principle of Radiation Protection). The drown conclusion is that: effective dose calculation converted in time units by the medical physicist could be then communicated to the patients by the radiologist together with the diagnostic notes and a minimum informal regarding the nature and type of radiation.