Stroke Monitoring: Light & Sound Tech
- A POSTECH research team has achieved a significant advancement in stroke detection, addressing a condition that claims millions of lives annually.
- Ischemic stroke, a leading cause of death worldwide, demands rapid intervention to minimize brain tissue damage.
- The team also developed an algorithm that uses multi-wavelength photoacoustic imaging to observe hemoglobin and measure oxygen saturation in blood vessels.
POSTECH Team Develops innovative Stroke Detection Technology
Updated June 07, 2025
A POSTECH research team has achieved a significant advancement in stroke detection, addressing a condition that claims millions of lives annually. Their innovative approach combines light and sound to combat ischemic stroke, which occurs when a blood vessel in the brain becomes blocked. This new photoacoustic computed tomography (PACT) technology offers real-time monitoring of cerebrovascular changes, perhaps revolutionizing early diagnosis and treatment of stroke.
Ischemic stroke, a leading cause of death worldwide, demands rapid intervention to minimize brain tissue damage. Existing technologies often struggle to capture early vascular changes in real-time, hindering timely treatment. The POSTECH team’s PACT system overcomes these limitations by integrating light and ultrasound. This allows for non-invasive monitoring of blood vessel changes in small animals during the early stages of stroke,providing precise analysis of vascular alterations across a wide area.
The team also developed an algorithm that uses multi-wavelength photoacoustic imaging to observe hemoglobin and measure oxygen saturation in blood vessels. This enables precise monitoring of ischemic lesions, collateral blood flow, and neovascular changes. The results have proven reliable when compared to existing pathological tissue tests, demonstrating the PACT system’s effectiveness in tracking vascular recovery after a stroke. This advancement in stroke detection promises to improve outcomes for stroke patients.
The most significant result from this research is that we can now have precise observation of blood flow changes without using contrast,” the POSTECH research team said.
What’s next
The POSTECH team anticipates that this technology will open new avenues for stroke treatment research, as well as investigations into various neurological and vascular diseases. The ability to precisely observe blood flow changes without contrast agents represents a major step forward in understanding and treating these conditions. further research and growth will focus on translating these findings into clinical applications for human patients, ultimately improving stroke care.
