Abstract
The authors report the results of utilizing spatially-modulated near infrared light using Modulated Imaging (MI) technology in imaging cerebral ischemia. MI images of the left parietal somatosensory cortex were obtained post-occlusion and up to three hours following middle cerebral artery occlusion. Tissue chromophore maps were obtained to demonstrate spatiotemporal changes in the distribution of oxy, deoxy, total hemoglobin, and oxygen saturation. MI recorded a decrease in oxyhemoglobin concentration and tissue oxygen saturation and increase in tissue deoxyhemoglobin concentration following occlusion. Optical intrinsic signal was used to detect functional activation of the somatosensory barrel cortex to whisker stimulation. This activation was completely lost following occlusion. Imaging findings in a transient ischemic attack using photothrombosis is also demonstrated.
| Original language | English |
|---|---|
| Title of host publication | Medical Imaging 2007 |
| Subtitle of host publication | Physiology, Function, and Structure from Medical Images |
| Edition | PART 1 |
| DOIs | |
| State | Published - 15 Oct 2007 |
| Externally published | Yes |
| Event | Medical Imaging 2007: Physiology, Function, and Structure from Medical Images - San Diego, CA, United States Duration: 18 Feb 2007 → 20 Feb 2007 |
Publication series
| Name | Progress in Biomedical Optics and Imaging - Proceedings of SPIE |
|---|---|
| Number | PART 1 |
| Volume | 6511 |
| ISSN (Print) | 1605-7422 |
Conference
| Conference | Medical Imaging 2007: Physiology, Function, and Structure from Medical Images |
|---|---|
| Country/Territory | United States |
| City | San Diego, CA |
| Period | 18/02/07 → 20/02/07 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 3 Good Health and Well-being
Keywords
- Brain attack
- Ischemia
- MCA stroke
- Modulated imaging
- Stroke
- TIA
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Biomaterials
- Radiology Nuclear Medicine and imaging
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