Radiation dose-reduction strategies in thoracic CT

Modern computed tomography (CT) machines have the capability to perform thoracic CT for a range of clinical indications at increasingly low radiation doses. This article reviews several factors, both technical and patient-related, that can affect radiation dose and discusses current dose-reduction m...

Full description

Saved in:

Bibliographic Details
Published in:	Clinical radiology Vol. 72; no. 5; pp. 407 - 420
Main Authors:	Moser, J.B, Sheard, S.L, Edyvean, S, Vlahos, I
Format:	Journal Article
Language:	English
Published:	England Elsevier Ltd 01-05-2017
Subjects:	Humans Image Processing, Computer-Assisted - methods Radiation Dosage Radiography, Thoracic - methods Radiology Tomography, X-Ray Computed - methods
Online Access:	Get full text
Tags:	Add Tag No Tags, Be the first to tag this record!

Description
Summary:	Modern computed tomography (CT) machines have the capability to perform thoracic CT for a range of clinical indications at increasingly low radiation doses. This article reviews several factors, both technical and patient-related, that can affect radiation dose and discusses current dose-reduction methods relevant to thoracic imaging through a review of current techniques in CT acquisition and image reconstruction. The fine balance between low radiation dose and high image quality is considered throughout, with an emphasis on obtaining diagnostic quality imaging at the lowest achievable radiation dose. The risks of excessive radiation dose reduction are also considered. Inappropriately low dose may result in suboptimal or non-diagnostic imaging that may reduce diagnostic confidence, impair diagnosis, or result in repeat examinations incurring incremental ionising radiation exposure.
Bibliography:	ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-3 content type line 23 ObjectType-Review-1
ISSN:	0009-9260 1365-229X
DOI:	10.1016/j.crad.2016.11.021