Does digital imaging decrease patient dose? A pilot study and review of the literature

The potential for decreasing patient dose is one of the main arguments for the justification of the cost of digital imaging equipment. However, the literature review with respect to patient doses using digital imaging modalities, presents conflicting results. During this study, patients' entran...

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Bibliographic Details
Published in:Radiation protection dosimetry 2005-01, Vol.117 (1-3), p.204-210
Main Authors: Neofotistou, V., Tsapaki, V., Kottou, S., Schreiner-Karoussou, A., Vano, E.
Format: Article
Language:English
Subjects:
Humans
Lumbar Vertebrae - diagnostic imaging
Pelvis - diagnostic imaging
Phantoms, Imaging
Pilot Projects
Radiation Dosage
Radiation Monitoring - methods
Radiation Protection - methods
Radiographic Image Enhancement
Radiographic Image Interpretation, Computer-Assisted
Radiography - methods
Radiometry - methods
X-Ray Intensifying Screens
X-Rays
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Summary:The potential for decreasing patient dose is one of the main arguments for the justification of the cost of digital imaging equipment. However, the literature review with respect to patient doses using digital imaging modalities, presents conflicting results. During this study, patients' entrance surface doses were measured for three simple radiographic examinations, in European centres equipped with a computed radiography digital system. Results showed that doses between centres varied from 30% for chest LAT to 250% for chest PA examination. With the digital image quality criteria still under discussion, and with the post-processing parameters and/or image documentations varying, any dose comparisons between conventional/digital systems, as well as dose comparisons between different centre using digital units, are difficult. Clinical trials are required in order to define reference levels associated with quality of digital image necessary to address specific clinical requirements.
ISSN:0144-8420
1742-3406
DOI:10.1093/rpd/nci718