An innovation: Matrix imaging improves ultrasound resolution
Ultrasound is a flexible and powerful medical imaging tool. In conventional ultrasounds, variations in soft tissue structure distort ultrasound wavefronts. They blur the image and can hence prove detrimental to medical diagnosis.
Researchers at the Institut Langevin (CNRS/ESPCI Paris-PSL)* have developed a new non-invasive ultrasound method that avoids such aberrations. In an article published in the journal PNAS** on 10 June 2020, the scientists showed how this method can subtly compensate for the distortions that a focused wave undergoes as it travels through the studied tissue, with an ideal resolution and contrast optimized for each pixel in the image. This approach can be extended to any type of wave, and can be controlled by a multi-sensor network. Applications range from biomedical diagnosis to optical microscopy, detection of cracks in industrial materials, and the monitoring of volcanoes and fault zones in geophysics.
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