Effective Radiation Dose in the Wrist Resulting from a Radiographic Device, Two CBCT Devices and One MSCT Device: A Comparative Study

• Published in: Radiation protection dosimetry 2018-04, Vol.179 (1), p.58-68
• Main Authors: Koivisto, Juha, van Eijnatten, Maureen, Kiljunen, Timo, Shi, Xie-Qi, Wolff, Jan
• Format: Article
• Language: English
• Subjects: Cone-Beam Computed Tomography - instrumentation; Humans; Medicin och hälsovetenskap; Multidetector Computed Tomography - instrumentation; Phantoms, Imaging; Radiation Dosage; Wrist - radiation effects
• ISSN: 0144-8420; 1742-3406; 1742-3406
• DOI: 10.1093/rpd/ncx210

The objective of the present study was to assess and compare the effective doses in the wrist region resulting from conventional radiography device, multislice computed tomography (MSCT) device and two cone beam computed tomography (CBCT) devices using MOSFET dosemeters and a custom made anthropomorphic RANDO phantom according to the ICRP 103 recommendation. The effective dose for the conventional radiography was 1.0 μSv. The effective doses for the NewTom 5 G CBCT ranged between 0.7 μSv and 1.6 μSv, for the Planmed Verity CBCT 2.4 μSv and for the MSCT 8.6 μSv. When compared with the effective dose for AP- and LAT projections of a conventional radiographic device, this study showed an 8.6-fold effective dose for standard MSCT protocol and between 0.7 and 2.4-fold effective dose for standard CBCT protocols. When compared to the MSCT device, the CBCT devices offer a 3D view of the wrist at significantly lower effective doses.