Inflow effects on hemodynamic responses characterized by event-related fMRI using gradient-echo EPI sequences.

@article{Liu2008InflowEO,
  title={Inflow effects on hemodynamic responses characterized by event-related fMRI using gradient-echo EPI sequences.},
  author={Ho-Ling Liu and Pei-Shan Wei and Yau-Yau Wai and Wan-Chun Kuan and Chih-Mao Huang and Changwei W Wu and Christopher Buckle and Yung-Liang Wan and Jia-Hong Gao},
  journal={Medical physics},
  year={2008},
  volume={35 10},
  pages={4300-7}
}
The purpose of this study is to determine whether blood inflow impacts the temporal behavior of BOLD-contrast fMRI signal changes in a typical event-related paradigm. The inflow contributions in the hemodynamic response to repeated single trials of short visual stimulation were assessed with a gradient-echo EPI sequence by altering the flip angle (FA) from 30 degrees to 90 degrees at a repetition time of 1 s. For each FA condition (30 degrees, 60 degrees, and 90 degrees), 30 trials were… CONTINUE READING