Abstract:
:This study aims to develop an Automatic Brain Dose Estimation (ABDE) methodology for head computed tomography examinations. The ABDE is to be applied first to an anthropomorphic Alderson phantom to obtain a Correction factor (Cf) between the ABDE and the direct absorbed brain dose using dosemeters positioned within the anthropomorphic phantom. Then, in order to estimate the correct brain dose for patient, the Cf was multiplied by the mean ABDE values for each patient. Results were compared to those registered with a mathematical simulation phantom using CT-Expo V 2.4 software. Results showed no significant difference between the correct ABDE values and the CT-Expo values with a mean percent difference of 2.54 ± 0.01%. In conclusion, ABDE yields a correct estimation of brain dose, taking into account the size and attenuation of the irradiated region. Thus, it is clinically recommended for accurate patient brain dose assessment.
journal_name
Radiat Prot Dosimetryjournal_title
Radiation protection dosimetryauthors
Gharbi S,Labidi S,Mars Mdoi
10.1093/rpd/ncaa006subject
Has Abstractpub_date
2020-07-02 00:00:00pages
536-542issue
4eissn
0144-8420issn
1742-3406pii
5733076journal_volume
188pub_type
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