POSTECH successfully diagnoses early-stage stroke using light and sound.

Development of Photoacoustic Computed Tomography Technology…Efficacy Proven in Animal Models, “Early diagnosis of stroke, which occurs when a blood clot blocks a blood vessel or due to hemorrhage, is crucial as delayed treatment can rapidly damage brain tissue.”,
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, “A domestic research team has developed an innovative photoacoustic technology that can monitor early vascular changes in real-time.”,
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, “POSTECH announced on the 27th that a research team led by Professor Yongju Ahn from the Department of IT Convergence Engineering and the Graduate School of Convergence developed ‘Photoacoustic Computed Tomography (PACT1)’ technology that combines light and ultrasound (sound).”,
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, The imaging shows the entire cerebral vascular structure visualized using the whole-brain photoacoustic computed tomography system. It depicts changes in acute ischemic stroke lesions. (Graphic=POSTECH),
, “The research team applied a complex scanning technique that combines linear and rotational scanning in the development of ‘PACT1’. This involves synthesizing images obtained from multiple angles into a single, three-dimensional reconstruction, similar to taking photographs from various directions.”,
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, “Professor Ahn stated, ‘We non-invasively monitored changes in the brain vasculature of small animals in real-time during the early stages of ischemic stroke’ and ‘succeeded in precisely analyzing vascular changes over a wide area.'”,
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, “The research team also developed an algorithm to non-invasively observe hemoglobin using near-infrared multi-wavelength photoacoustic imaging and measure oxygen saturation levels across blood vessels in real-time.”,
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, “Professor Ahn explained, ‘We can now precisely monitor not only ischemic lesions but also changes in collateral blood flow and neovascularization.'”,
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, “Professor Ahn further mentioned, ‘This will offer a new experimental approach not only for stroke treatment research but also for various neurological and vascular disease studies.'”,
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, Professor Yongju Ahn of POSTECH.,