Abstract
Ultrasound imaging of the vasculature has major significance for the detection of cardiovascular diseases and cancer. However, limited spatial resolution or long acquisition times of existing techniques limit the visualization of the microvascular structures. Enforcing sparsity in the underlying vasculature as well as exploiting statistical independence between voxels have become prominent for fast super-resolution imaging. However, such a statistical independence may not be valid for all voxels and may hence lead to a distorted signal model. Here we present an image reconstruction method that exploits the sparsity of the vasculature data without distorting the original signal model. We employ a multiple measurement vector (MMV) model to enforce the joint sparsity over the images at different time instants. To reduce the computational complexity of obtaining the solution, the ℓ1-SVD method is applied to the MMV model. We demonstrate that our method improves spatial resolution and provides a clear separation between blood vessels. Although our method is slightly slower than existing approaches, it outperforms them in terms of image reconstruction quality.
Original language | English |
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Title of host publication | 2021 IEEE Statistical Signal Processing Workshop, SSP 2021 |
Place of Publication | Danvers |
Publisher | IEEE |
Pages | 501-505 |
Number of pages | 5 |
ISBN (Electronic) | 978-1-7281-5767-2 |
ISBN (Print) | 978-1-7281-5768-9 |
DOIs | |
Publication status | Published - 2021 |
Event | 2021 IEEE Statistical Signal Processing Workshop (SSP) - Virtual at Rio de Janeiro, Brazil Duration: 11 Jul 2021 → 14 Jul 2021 |
Publication series
Name | IEEE Workshop on Statistical Signal Processing Proceedings |
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Volume | 2021-July |
Workshop
Workshop | 2021 IEEE Statistical Signal Processing Workshop (SSP) |
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Country/Territory | Brazil |
City | Virtual at Rio de Janeiro |
Period | 11/07/21 → 14/07/21 |
Bibliographical note
Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-careOtherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public
Keywords
- multiple measurement vector (MMV) model
- sparse reconstruction
- vascular ultrasound imaging
- ℓ1-SVD