Radiation exposure using the O-arm® surgical imaging system.
Eur Spine J
; 26(3): 651-657, 2017 03.
Article
in En
| MEDLINE
| ID: mdl-27652675
ABSTRACT
PURPOSE:
This study was conducted to characterise the O-arm® surgical imaging system in terms of patient organ doses and medical staff occupational exposure during three-dimensional thoracic spine and pelvic examinations.METHODS:
An anthropomorphic phantom was used to evaluate absorbed organ doses during a three-dimensional thoracic spine scan and a three-dimensional pelvic scan with the O-arm®. Staff occupational exposure was evaluated by constructing an ambient dose cartography of the operating theatre during a three-dimensional pelvic scan as well as using an anthropomorphic phantom to simulate the O-arm® operator.RESULTS:
Patient organ doses ranged from 30 ± 4 µGy to 20.0 ± 3.0 mGy and 4 ± 1 µGy to 6.7 ± 1.0 mGy for a three-dimensional thoracic spine and pelvic examination, respectively. For a single three-dimensional acquisition, the maximum ambient equivalent dose at 2 m from the iso-centre was 11 ± 1 µSv.CONCLUSION:
Doses delivered to the patient during a three-dimensional thoracic spine image acquisition were found to be significant with the O-arm®, but lower than those observed with a standard computed tomography examination. The detailed dose cartography allows for the optimisation of medical staff positioning within the operating theatre while imaging with the O-arm®.Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Radiation Dosage
/
Fluoroscopy
/
Occupational Exposure
/
Radiation Exposure
Limits:
Humans
Language:
En
Journal:
Eur Spine J
Journal subject:
ORTOPEDIA
Year:
2017
Document type:
Article
Affiliation country:
Switzerland