Which axis gradient corresponds to encoding along the anterior-posterior direction?

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Multiple Choice

Which axis gradient corresponds to encoding along the anterior-posterior direction?

Explanation:
An MRI spatial encoding uses gradients along three perpendicular directions to locate signals in three dimensions. The gradient applied along the Y axis encodes position in the anterior-posterior direction, since Y corresponds to front-to-back in standard anatomical coordinates. The X axis encodes left-right, and the Z axis encodes head-to-feet. The W axis isn’t a standard gradient in MRI. So, encoding in the anterior-posterior direction relies on the Y gradient.

An MRI spatial encoding uses gradients along three perpendicular directions to locate signals in three dimensions. The gradient applied along the Y axis encodes position in the anterior-posterior direction, since Y corresponds to front-to-back in standard anatomical coordinates. The X axis encodes left-right, and the Z axis encodes head-to-feet. The W axis isn’t a standard gradient in MRI. So, encoding in the anterior-posterior direction relies on the Y gradient.

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