Staff Radiation Doses in a Real-Time Display Inside the Angiography Room

Journal Article · Wed Dec 15 00:00:00 EST 2010 · Cardiovascular and Interventional Radiology

DOI:https://doi.org/10.1007/S00270-010-9945-4· OSTI ID:21428879

Sanchez, Roberto; Vano, E; Fernandez, J M ^[1]; Gallego, J J ^[2]

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1. Hospital Clinico San Carlos, Medical Physics Department (Spain)
2. Universidad Complutense de Madrid, Radiology Department (Spain)

MethodsThe evaluation of a new occupational Dose Aware System (DAS) showing staff radiation doses in real time has been carried out in several angiography rooms in our hospital. The system uses electronic solid-state detectors with high-capacity memory storage. Every second, it archives the dose and dose rate measured and is wirelessly linked to a base-station screen mounted close to the diagnostic monitors. An easy transfer of the values to a data sheet permits further analysis of the scatter dose profile measured during the procedure, compares it with patient doses, and seeks to find the most effective actions to reduce operator exposure to radiation.ResultsThe cumulative occupational doses measured per procedure (shoulder-over lead apron) ranged from 0.6 to 350 {mu}Sv when the ceiling-suspended screen was used, and DSA (Digital Subtraction Acquisition) runs were acquired while the personnel left the angiography room. When the suspended screen was not used and radiologists remained inside the angiography room during DSA acquisitions, the dose rates registered at the operator's position reached up to 1-5 mSv/h during fluoroscopy and 12-235 mSv/h during DSA acquisitions. In such case, the cumulative scatter dose could be more than 3 mSv per procedure.ConclusionReal-time display of doses to staff members warns interventionists whenever the scatter dose rates are too high or the radiation protection tools are not being properly used, providing an opportunity to improve personal protection accordingly.

• OSTI ID: 21428879
• Journal Information: Cardiovascular and Interventional Radiology, Vol. 33, Issue 6; Other Information: DOI: 10.1007/s00270-010-9945-4; Copyright (c) 2010 Springer Science+Business Media, LLC and the Cardiovascular and Interventional Radiological Society of Europe (CIRSE); ISSN 0174-1551
• Country of Publication: United States
• Language: English

Related Subjects

61 RADIATION PROTECTION AND DOSIMETRY
62 RADIOLOGY AND NUCLEAR MEDICINE
BLOOD VESSELS
DOSE RATES
FLUOROSCOPY
OCCUPATIONAL EXPOSURE
RADIATION DOSES
RADIATION PROTECTION
RADIOLOGICAL PERSONNEL
REAL TIME SYSTEMS
BIOMEDICAL RADIOGRAPHY
BODY
CARDIOVASCULAR SYSTEM
DIAGNOSTIC TECHNIQUES
DOSES
MEDICAL PERSONNEL
MEDICINE
NUCLEAR MEDICINE
ORGANS
PERSONNEL
RADIOLOGY