Next Article in Journal
Importance of Attenuation Correction (AC) for Small Animal PET Imaging
Previous Article in Journal
Comparison of 1-Ethyl-3-(3-Dimethylaminopropyl) Carbodiimide Based Strategies to Crosslink Antibodies on Amine-Functionalized Platforms for Immunodiagnostic Applications
Diagnostics 2012, 2(3), 34-41; doi:10.3390/diagnostics2030034
Article

Improving Accuracy for Image Fusion in Abdominal Ultrasonography

* ,
,
 and
Received: 27 June 2012 / Revised: 30 July 2012 / Accepted: 22 August 2012 / Published: 27 August 2012
View Full-Text   |   Download PDF [284 KB, uploaded 27 August 2012]   |   Browse Figures

Abstract

Image fusion involving real-time ultrasound (US) is a technique where previously recorded computed tomography (CT) or magnetic resonance images (MRI) are reformatted in a projection to fit the real-time US images after an initial co-registration. The co-registration aligns the images by means of common planes or points. We evaluated the accuracy of the alignment when varying parameters as patient position, respiratory phase and distance from the co-registration points/planes. We performed a total of 80 co-registrations and obtained the highest accuracy when the respiratory phase for the co-registration procedure was the same as when the CT or MRI was obtained. Furthermore, choosing co-registration points/planes close to the area of interest also improved the accuracy. With all settings optimized a mean error of 3.2 mm was obtained. We conclude that image fusion involving real-time US is an accurate method for abdominal examinations and that the accuracy is influenced by various adjustable factors that should be kept in mind.
Keywords: ultrasound; image-fusion; CT; accuracy ultrasound; image-fusion; CT; accuracy
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Share & Cite This Article

Further Mendeley | CiteULike
Export to BibTeX |
EndNote
MDPI and ACS Style

Ewertsen, C.; Hansen, K.L.; Henriksen, B.M.; Nielsen, M.B. Improving Accuracy for Image Fusion in Abdominal Ultrasonography. Diagnostics 2012, 2, 34-41.

View more citation formats

Related Articles

Article Metrics

Comments

Cited By

[Return to top]
Diagnostics EISSN 2075-4418 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert