In diffusion weighted imaging, restricted diffusion results in:
A. ) lower signal intensity.
B. ) higher signal intensity.
C. ) no change in signal intensity.
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In a T2-weighted image, contrast between tissues can be optimised by selecting an appropriate:
A. ) T
B. ) TR.
C. ) TI.
As the number of phase encoded echoes acquired increases:
A. ) the image resolution increases.
B. ) the image resolution decreases.
C. ) the image resolution is unaffected.
The phase encoding gradient is applied:
A. ) Before the read gradient.
B. ) After the read gradient.
C. ) At the same time as the read gradient.
If a frequency encoding gradient is applied along the Y-axis, then the echo signal will be a projection against the:
A. ) X-axis.
B. ) Y-axis.
C. ) Z-axis.