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Figure 3 | Journal of Cardiovascular Magnetic Resonance

Figure 3

From: Optimization of Improved Motion-sensitized Driven-equilibrium (iMSDE) blood suppression for carotid artery wall imaging

Figure 3

Percentage SNR decrease using iMSDE relative to the standard sequence without blood suppression (in gel phantoms). Comparison of SNR change is plotted against the idealized case (computing theoretical signal intensity change as a function of the increased effective echo time (TEeff)). Experimental observations of signal intensity change using trapezoidal and sinusoidal gradients for motion sensitization are illustrated using two calibrated gel phantoms with T2 values of 50 ms (A) and 89 ms (B) [1.5 T @ 21°C] to represent typical carotid vessel wall and muscle tissue respectively. A composite 180° pulse was used for all iMSDE preparations.

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