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Validation of a High Contrast Technique and T1 Values Obtained by Divided Subtracted Inversion Recovery (dSIR)
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Motivation: To validate a 2 point high contrast T1 technique using the National Institute of Standards and Technology (NIST) T1 phantom. Goal(s): Qualitative results produced by the divided subtracted IR (dSIR) images have been shown to give unprecedented T1 contrast in case studies of neuroinflammation [1]. The present study validates the theoretical mechanism of contrast in a standardized commercial T1 phantom. Approach: Experiments were performed at 1.5T to compare the empirical signal response versus the theoretical prediction in a phantom with known T1s. Results: The signal response was found to match the predicted bipolar variation very closely. Impact: Clinicians wishing to employ 2 point T1 estimation techniques can be satisfied that the results are grounded in theory and are quantitatively validated.
Title: Validation of a High Contrast Technique and T1 Values Obtained by Divided Subtracted Inversion Recovery (dSIR)
Description:
Motivation: To validate a 2 point high contrast T1 technique using the National Institute of Standards and Technology (NIST) T1 phantom.
Goal(s): Qualitative results produced by the divided subtracted IR (dSIR) images have been shown to give unprecedented T1 contrast in case studies of neuroinflammation [1].
The present study validates the theoretical mechanism of contrast in a standardized commercial T1 phantom.
Approach: Experiments were performed at 1.
5T to compare the empirical signal response versus the theoretical prediction in a phantom with known T1s.
Results: The signal response was found to match the predicted bipolar variation very closely.
Impact: Clinicians wishing to employ 2 point T1 estimation techniques can be satisfied that the results are grounded in theory and are quantitatively validated.
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