0000000000022524
AUTHOR
Davide Bellini
De Libero diarista: solipsismo e memoria remota nel quaderno n. 1 di «Borrador»
Patient centring and scan length: how inaccurate practice impacts on radiation dose in CT colonography (CTC).
Objective: The aim of this study was to acknowledge errors in patients positioning in CT colonography (CTC) and their effect in radiation exposure. Materials and methods: CTC studies of a total of 199 patients coming from two different referral hospitals were retrospectively reviewed. Two parameters have been considered for the analysis: patient position in relation to gantry isocentre and scan length related to the area of interest. CTDI vol and DLP were extracted for each patient. In order to evaluate the estimated effective total dose and the dose to various organs, we used the CT-EXPO ® software version 2.2. This software provides estimates of effective dose and doses to the other vario…