Jing Wang1, Liu Chen1, Bing Wu2,
Xiaoping Hu3, Xiaoying Wang, 12, Jue Zhang1,4,
Jing Fang1,4
1Academy for Advanced Interdisciplinary
Studies, Peking University, Beijing, China; 2Dept. of Radiology,
Peking University First Hospital, Beijing, China; 3Dept. of
Biomedical Engineering, Georgia Institute of Technology / Emory University,
Atlanta, United States; 4College of Engineering, Peking
University, Beijing, China
The
MR based evaluation of cerebral blood flow (CBF) plays an important role in
assessment of post-stroke rehabilitation, but limits by its inconvenient and
high costs. In this study, the weighted average accuracy index (WAAI), as a
novel electroencephalogram (EEG) feature related index was introduced to
estimate effectively the change of EEG pattern with the gradual CBF
improvement due to the increase of CO2 concentration. Group results of
healthy subjects showed that there existed a strong relationship between WAAI
and CBF, indicating that the proposed WAAI index could be helpful to evaluate
the extent of brain perfusion recovery.
Keywords