Effect of tin filter-based spectral shaping CT on image quality and radiation dose for routine use on ultralow-dose CT protocols: A phantom study.
Image enhancement
Multidetector computed tomography
Radiation dose
Ultra low dose protocol.
Journal
Diagnostic and interventional imaging
ISSN: 2211-5684
Titre abrégé: Diagn Interv Imaging
Pays: France
ID NLM: 101568499
Informations de publication
Date de publication:
Jun 2020
Jun 2020
Historique:
received:
15
11
2019
revised:
19
12
2019
accepted:
05
01
2020
pubmed:
6
2
2020
medline:
19
8
2021
entrez:
4
2
2020
Statut:
ppublish
Résumé
The purpose of this study was to assess the impact of tin filter (TF) on X-ray beam quality, image quality and radiation dose and its suitability for routine use for chest and lumbar-spine/pelvis-hip ultralow-dose (ULD) CT examination protocols. The X-ray beam quality was determined by measuring the half-value layer (HVL) and calculating the mean weighted energy for 100, 120, 150kVp (using standard filtration) and for 100 and 150kVp using TF (Sn100kVp and Sn150kVp, respectively). Acquisitions were performed on a phantom at four dose levels for each previously definedkVp. The mean attenuation (N The HVL and mean weighted energy increased using a TF for the same tube voltage. Using a TF for the same tube voltage changed N The use of TF increases the X-ray beam quality and improves the image quality characteristics in phantom images, thus appearing as a promising tool for reducing dose and/or improving the image quality of ULD protocols.
Identifiants
pubmed: 32008994
pii: S2211-5684(20)30003-6
doi: 10.1016/j.diii.2020.01.002
pii:
doi:
Substances chimiques
Tin
7440-31-5
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
373-381Informations de copyright
Copyright © 2020 Société française de radiologie. Published by Elsevier Masson SAS. All rights reserved.