Three-dimensional optical-tomographic localization of changes in absorption coefficients in the human brain

被引:5
作者
Bluestone, A [1 ]
Abdoulaev, G [1 ]
Barbour, R [1 ]
Schmitz, C [1 ]
Hielscher, AH [1 ]
机构
[1] Suny Downstate Med Ctr, Dept Pathol, Brooklyn, NY 11203 USA
来源
OPTICAL TOMOGRAPHY AND SPECTROSCOPY OF TISSUE IV | 2001年 / 4250卷
关键词
diffuse optical tomography; brain imaging; three-dimensional imaging; inverse-problem;
D O I
10.1117/12.434496
中图分类号
R318 [生物医学工程];
学科分类号
0831 ;
摘要
We report on the first three dimensional tomographic localization of vascular reactivity in the brain. Using a model-based iterative image reconstruction algorithm we show the spatial distribution of changes in the absorption coefficient caused by changes in blood volume. Unlike currently available topographic reconstruction techniques, three-dimensional, volumetric reconstruction schemes promise to be capable of spatially distinguishing between signals originating in the cerebral cortex from those originating in the overlying tissues.
引用
收藏
页码:258 / 268
页数:11
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