ArticleApplied sciences (Basel, Switzerland)2023
Implementation of constrained swept synthetic aperture using a mechanical fixture.
Article in Applied sciences (Basel, Switzerland), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Optical Tracking for Freehand Swept Synthetic Aperture Imaging.IEEE transactions on ultrasonics, ferroelectrics, and frequency control · 2025Article
- 2D array imaging system for mechanically-steered, forward-viewing ultrasound guidewire.Ultrasonics · 2024Article
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1 author.
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Abstract
Resolution and target detectability in ultrasound imaging are directly tied to the size of the imaging array. This is especially important for imaging at depth, such as in the detection and diagnosis of hepatocellular carcinoma and other lesions in the liver. Swept synthetic aperture (SSA) imaging has shown promise for building large effective apertures from small physical arrays using motion, but has required bulky fixtures and external motion tracking for precise positioning. In this study we present an approach that constrains the transducer motion with a simple linear sliding fixture and estimates motion from the ultrasound data itself using either speckle tracking or channel correlation. We demonstrate in simulation and phantom experiments the ability of both techniques to accurately estimate lateral transducer motion and form SSA images with improved resolution and target detectability. We observed errors under 83
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