Accounting for speed of sound variations in volumetric hand-held optoacoustic imaging
| Autor: | X. Luís Deán-Ben, Ali Ozbek, Daniel Razansky |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
business.industry
Computer science Hand held Ultrasound Graphics processing unit Translation (geometry) 01 natural sciences 030218 nuclear medicine & medical imaging Electronic Optical and Magnetic Materials Visualization 010309 optics 03 medical and health sciences 0302 clinical medicine Speed of sound 0103 physical sciences Computer vision Artificial intelligence Tomography Electrical and Electronic Engineering business Optoacoustic imaging |
| Zdroj: | Frontiers of Optoelectronics. 10:280-286 |
| ISSN: | 2095-2767 2095-2759 |
| Popis: | Hand-held implementations of recently introduced real-time volumetric tomography approaches represent a promising path toward clinical translation of the optoacoustic technology. To this end, rapid acquisition of optoacoustic image data with spherical matrix arrays has attained exquisite visualizations of three-dimensional vascular morphology and function deep in human tissues. Nevertheless, significant reconstruction inaccuracies may arise from speed of sound (SoS) mismatches between the imaged tissue and the coupling medium used to propagate the generated optoacoustic responses toward the ultrasound sensing elements. Herein, we analyze the effects of SoS variations in three-dimensional hand-held tomographic acquisition geometries. An efficient graphics processing unit (GPU)-based reconstruction framework is further proposed to mitigate the SoS-related image quality degradation without compromising the high-frame-rate volumetric imaging performance of the method, essential for real-time visualization during hand-held scans. |
| Databáze: | OpenAIRE |
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