Open Access. Powered by Scholars. Published by Universities.®
Systems and Integrative Physiology Commons™
Open Access. Powered by Scholars. Published by Universities.®
- Institution
- Keyword
-
- Transcranial Doppler (2)
- Ultrasonography (2)
- 2-D (1)
- 432Hz (1)
- 440Hz (1)
-
- Articulation (1)
- Bio-Feedback (1)
- Biomedical imaging (1)
- Blood flow (1)
- Blood flow measurement (1)
- CVA (1)
- Cataract surgery recovery (1)
- Cerebral blood flow (1)
- Classifier (1)
- Clinic efficiency (1)
- Cognitive (1)
- Dysphagia (1)
- Emotional (1)
- Engineering (1)
- Frequency (1)
- Functional imaging. (1)
- Genre (1)
- Health literacy intervention (1)
- Healthcare communication (1)
- Healthcare disparities (1)
- Healthcare literacy programs (1)
- Hertz (1)
- Image analysis (1)
- Informed consent (1)
- Instrumentation (1)
- Publication Year
- Publication
- Publication Type
Articles 31 - 31 of 31
Full-Text Articles in Systems and Integrative Physiology
Ultrasound Three- Dimensional Velocity Measurements By Feature Tracking, Gregory R. Bashford, Olaf T. Von Ramm
Ultrasound Three- Dimensional Velocity Measurements By Feature Tracking, Gregory R. Bashford, Olaf T. Von Ramm
Biomedical Imaging and Biosignal Analysis Laboratory
This article describes a new angle-independent method suitable for three-dimensional (3-D) blood flow velocity measurement that tracks features of the ultrasonic speckle produced by a pulse echo system. In this method, a feature is identified and followed over time to detect motion. Other blood flow velocity measurement methods typically estimate velocity using one- (1-D) or two-dimensional (2-D) spatial and time information. Speckle decorrelation due to motion in the elevation dimension may hinder this estimate of the true 3-D blood flow velocity vector. Feature tracking is a 3-D method with the ability to measure the true blood velocity vector rather than …