Preliminary study of using imaging plates to map skin dose of patients in interventional radiology procedures.

Abstract:

:A method using europium-doped BaFBr imaging plates (IPs) has been studied for mapping entrance skin doses during interventional radiology (IR); the mapping is useful for detecting overlap between irradiation fields and determining the most exposed skin areas. IPs, which are two-dimensional radiation sensors made of photostimulated luminescence materials, have a linear dose response up to approximately 100 Gy, can accurately measure doses from 1 microGy to 10 Gy and can be used repeatedly. Because the energy dependence of IPs is rather high, the IPs were characterised in this study and a sensitivity variation of approximately 13% was observed for effective energies of 32.7 to 44.7 keV, which are used in IR procedures. Simulation of actual interventional cardiology procedures showed that the variation of sensitivity was within 5%, meaning that IPs are practical for measuring skin doses during IR. Moreover, the patient data can be stored online and easily called up when IR procedures must be repeated, helping to prevent radiation injuries.

journal_name

Radiat Prot Dosimetry

authors

Ohuchi H,Satoh T,Eguchi Y,Mori K

doi

10.1093/rpd/nch468

keywords:

subject

Has Abstract

pub_date

2005-01-01 00:00:00

pages

432-9

issue

4

eissn

0144-8420

issn

1742-3406

pii

nch468

journal_volume

117

pub_type

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