| Summary: | 碩士 === 國立臺灣科技大學 === 電機工程系 === 97 === Recently, blood oxygenation sensitive steady-state (BOSS) has been applied for functional MRI. The functional contrast of BOSS depends on the complex and nonlinear phase behavior, which is quite different from the BOLD methods. Whether the functional-contrast studies using the BOLD methods and BOSS can reach the same conclusions is still not investigated. To answer this question, in our study, we designed a visual experiment to compare the stimulus-rate dependency of the functional contrast of both BOLD-EPI and BOSS. In the result, the BOSS curve shows highly correlated to the BOLD-EPI curve. Furthermore, the averaged functional contrasts obtained by BOSS are higher than that obtained by BOLD-EPI.
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