Coherent-weighted three-dimensional image reconstruction in linear-array-based photoacoustic tomography
| Autor: | Yuehang Wang, Depeng Wang, Jonathan F. Lovell, Jun Xia, Yang Zhou |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Image quality
Computer science media_common.quotation_subject ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION Image processing Iterative reconstruction 01 natural sciences Article Imaging phantom 030218 nuclear medicine & medical imaging 010309 optics 03 medical and health sciences 0302 clinical medicine ocis:(110.5125) Photoacoustics 0103 physical sciences Contrast (vision) Computer vision ocis:(100.0100) Image processing media_common ocis:(110.5120) Photoacoustic imaging business.industry Resolution (electron density) Atomic and Molecular Physics and Optics Weighting Transducer Artificial intelligence business Biotechnology |
| Zdroj: | Biomedical Optics Express |
| ISSN: | 2156-7085 |
| DOI: | 10.1364/boe.7.001957 |
| Popis: | While the majority of photoacoustic imaging systems used custom-made transducer arrays, commercially-available linear transducer arrays hold the benefits of affordable price, handheld convenience and wide clinical recognition. They are not widely used in photoacoustic imaging primarily because of the poor elevation resolution. Here, without modifying the imaging geometry and system, we propose addressing this limitation purely through image reconstruction. Our approach is based on the integration of two advanced image reconstruction techniques: focal-line-based three-dimensional image reconstruction and coherent weighting. We first numerically validated our approach through simulation and then experimentally tested it in phantom and in vivo. Both simulation and experimental results proved that the method can significantly improve the elevation resolution (up to 4 times in our experiment) and enhance object contrast. |
| Databáze: | OpenAIRE |
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