OSl dosimetry

Improving radiation protection of patients during therapy and imaging

Radiation protection for patients

Patients are exposed to radiations during diagnostic or cancer therapy using X-rays, radiopharmaceuticals or radioactive sources placed inside the patient’s body. Doses are especially high in radiotherapy and interventional procedures. Moreover, the number of medical acts using ionizing radiation has increased tremendously during recent decades.

Health professionals and patients are concerned about the harmful effects of radiation:

  • ICRP and national regulation has imposed staff dose monitoring that has helped to reduce significantly the collective dose.
  • More recently, new regulations and recommendations (International recommendations (IAEA BSS 398, ICRP 103-2007), Euratom Directive 97/43 replaced by Directive 2013/59) has aimed to reduce radiation doses to patient. EU member states shall transpose this directive 2013/59 in legal requirement by February 2018. In some countries, the legal framework makes In Vivo Dosimetry (IVD) mandatory for each technically measurable beam during the first or second exam and anytime, the treatment is modified

LANDAUER proposes microSTARii dose monitoring system which allows to monitor the dose received by the patient or to perform machine QA with the nanoDot dosimeter placed on phantom. The small size and robustness of the nanoDot allow easy installation at the desired location on the patient or phantom. The dose measured by microSTARii is used as a secondary and indepedant assessment method to confirm adequacy with TPS calculated dose and prescribed dose.