Hounsfield Unit inaccuracy in computed tomography lesion size and density, diagnostic quality vs attenuation correction

Szczepura, K ORCID: https://orcid.org/0000-0002-2566-3308, Thompson, JD ORCID: https://orcid.org/0000-0002-4786-7379 and Manning, D 2017, 'Hounsfield Unit inaccuracy in computed tomography lesion size and density, diagnostic quality vs attenuation correction' , Proceedings of SPIE volume 10136, Medical Imaging 2017: Image Perception, Observer Performance, and Technology Assessment, 101361B, 10136 .

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Abstract

In computed tomography the Hounsfield Units (HU) are used as an indicator of the tissue type based on the linear attenuation coefficients of the tissue. HU accuracy is essential when this metric is used in any form to support diagnosis. In hybrid imaging, such as SPECT/CT and PET/CT, the information is used for attenuation correction (AC) of the emission images. This work investigates the HU accuracy of nodules of known size and HU, comparing diagnostic quality (DQ) images with images used for AC.

Item Type:	Article
Schools:	Schools > School of Health and Society > Centre for Health Sciences Research
Journal or Publication Title:	Proceedings of SPIE volume 10136, Medical Imaging 2017: Image Perception, Observer Performance, and Technology Assessment, 101361B
Publisher:	SPIE Digital Library
ISSN:	0277-786X
Depositing User:	K Szczepura
Date Deposited:	14 Mar 2019 14:41
Last Modified:	28 Jan 2020 13:42
URI:	http://usir.salford.ac.uk/id/eprint/50423

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