Share Email Print
cover

Proceedings Paper

Hounsfield Unit inaccuracy in computed tomography lesion size and density, diagnostic quality vs attenuation correction
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper 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.

Paper Details

Date Published: 28 April 2017
PDF: 7 pages
Proc. SPIE 10136, Medical Imaging 2017: Image Perception, Observer Performance, and Technology Assessment, 101361B (28 April 2017); doi: 10.1117/12.2254275
Show Author Affiliations
Katy Szczepura, Univ. of Salford (United Kingdom)
John Thompson, Univ. of Salford (United Kingdom)
David Manning, Univ. of Salford (United Kingdom)


Published in SPIE Proceedings Vol. 10136:
Medical Imaging 2017: Image Perception, Observer Performance, and Technology Assessment
Matthew A. Kupinski; Robert M. Nishikawa, Editor(s)

© SPIE. Terms of Use
Back to Top