Andrew Scott Nencka1, Daniel L. Shefchik1,
James S. Hyde1, Andrzej Jesmanowicz1, Daniel B. Rowe2
1Department of Biophysics, Medical
College of Wisconsin, Milwaukee, WI, United States; 2Department of
Mathematics, Statistics and Computer Science, Marquette University,
Milwaukee, WI, United States
The
T2* contrast mechanism associated with the BOLD signal is well known, as is
its echo time (TE) dependence. In this abstract, we present a method for
analyzing data acquired with interleaved echo times. Based upon the expected
BOLD TE behavior, the ratio of the regression coefficients for the task
related columns of the design matrix may be used to identify voxels which
exhibit BOLD-like responses.