John Albinsson
Research engineer
Improved Tracking Performance of Lagrangian Block-Matching Methodologies Using Block Expansion in the Time Domain: In Silico, Phantom and in Vivo Evaluations.
Author
Summary, in English
The aim of this study was to evaluate tracking performance when an extra reference block is added to a basic block-matching method, where the two reference blocks originate from two consecutive ultrasound frames. The use of an extra reference block was evaluated for two putative benefits: (i) an increase in tracking performance while maintaining the size of the reference blocks, evaluated using in silico and phantom cine loops; (ii) a reduction in the size of the reference blocks while maintaining the tracking performance, evaluated using in vivo cine loops of the common carotid artery where the longitudinal movement of the wall was estimated. The results indicated that tracking accuracy improved (mean = 48%, p < 0.005 [in silico]; mean = 43%, p < 0.01 [phantom]), and there was a reduction in size of the reference blocks while maintaining tracking performance (mean = 19%, p < 0.01 [in vivo]). This novel method will facilitate further exploration of the longitudinal movement of the arterial wall.
Department/s
- Department of Biomedical Engineering
- Clinical Physiology and Nuclear Medicine, Malmö
Publishing year
2014
Language
English
Pages
2508-2520
Publication/Series
Ultrasound in Medicine and Biology
Volume
40
Issue
10
Links
Document type
Journal article
Publisher
Elsevier
Topic
- Radiology, Nuclear Medicine and Medical Imaging
Status
Published
Research group
- Clinical Physiology, Malmö
ISBN/ISSN/Other
- ISSN: 0301-5629