Resolution and Scan Time Implications

?P ? ?S rV?NAVTAD f(T1,T2)

• Reduce volume of voxels by factor of 2 (fixed TAD)

• Reduce signal averaging by factor of 4 (for fixed V)

Factor of 2 gain in SNR can be used to:

But ?2 decrease in SNR if bandwidth is doubled

V = voxel volume

NAV = number of signal averages

TAD = read out duration

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