Effects of aberration in crawling wave sonoelastography

Torres, Gabriela; Parker, Kevin J.; Castaneda, Benjamín; Lavarello, Roberto

doi:10.1109/ultsym.2015.0380

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2016

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Cited by 2 publications

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“…These 5% SOS errors will significantly reduce the contrast and spatial resolution of the photoacoustic tomography (PAT) image [2] . Acoustic speed variations have two effects on PAT images.…”

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confidence: 99%

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Adaptive speed of sound correction with photoacoustic tomography for imaging quality optimization

et al. 2016

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This work proposes a method to concurrently calibrate multiple acoustic speeds in different mediums with a photoacoustic (PA) and ultrasound (US) dual-modality imaging system. First, physical infrastructure information of the target is acquired through a US image. Then, we repeatedly build PA images around a special target to yield the best focused result by dynamically updating the acoustic speeds in a different medium of the target. With these correct acoustic propagation velocities in the according mediums, we can effectively optimize the PA image quality as the experiments proved, which might benefit future research in biomedical imaging science.

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confidence: 99%

“…Research on PAT saw increased development for its promising characteristics with non-invasive and non-ionizing disease diagnosing [1][2][3] . Reconstruction of a PA image is an inverse problem to calculate the pressure of the source according to the pressure measured by a moving transducer or array of transducers.…”

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confidence: 99%