Tobias Erlöv
Researcher
Improved Tracking Performance in High Frame Rate Imaging Using Iterative Phase Tracking
Author
Summary, in English
High frame rate ultrasound imaging is necessary to enable tracking of rapid dynamic events such as the carotid pulse wave velocity. Several studies have shown that it is feasible to use motion tracking methods that are applied on standard ultrasound frame rates also on very high frame rates. However, few studies have addressed the issue of accumulated tracking errors over vast numbers of frames during Lagrangian tracking. These could stem from e.g. limited signal-to-noise ratio often resulting from the use of plane wave imaging. One recently proposed solution was to combine motion tracking with an iterative tracking scheme. The purpose of this study has been to evaluate if the iterative tracking scheme could be exploited to increase the robustness of a phase-based tracking method in high frame rate plane wave imaging to track the carotid artery wall diameter. The results showed the iterative tracking scheme to give increased robustness with significantly (p<0.0003) less differences in measured lumen diameters between adjacent lines. Thus, this study enforces the suggestion to use the iterative tracking scheme during Lagrangian tracking in high frame rate imaging.
Department/s
- Department of Biomedical Engineering
- Ergonomics and Aerosol Technology
- Clinical Physiology and Nuclear Medicine, Malmö
Publishing year
2019-12-09
Language
English
Pages
2158-2161
Publication/Series
IEEE International Ultrasonics Symposium (IUS)
Volume
2019
Document type
Conference paper
Publisher
IEEE - Institute of Electrical and Electronics Engineers Inc.
Topic
- Medical Image Processing
- Radiology, Nuclear Medicine and Medical Imaging
Keywords
- Tracking
- Imaging
- Ultrasonic imaging
- Iterative methods
- Carotid arteries
- Ultrasonic variables measurement
- Robustness
- High frame rate imaging
- Motion estimation
- Iterative tracking scheme
- Accumulated errors
Status
Published
Research group
- Clinical Physiology and Nuclear Medicine, Malmö
ISBN/ISSN/Other
- ISSN: 1948-5727
- ISSN: 1948-5719
- ISBN: 978-1-7281-4596-9
- ISBN: 978-1-7281-4597-6