题目内容

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.

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