Computed Tomography Technologist Practice Exam

Question: 1 / 615

What axis is slice thickness also known as in computed tomography?

X axis

Z axis

Slice thickness in computed tomography (CT) is referred to as the Z axis. This designation is rooted in the three-dimensional coordinate system used in imaging. In this context, the X and Y axes typically represent the horizontal and vertical dimensions of the image plane, while the Z axis pertains to the depth dimension, which is directly related to the thickness of the slices being acquired.

When performing a CT scan, the imaging system moves through the Z axis to capture various slices of the body, each representing a specific thickness. The resultant images can then be stacked to create a comprehensive 3D representation of the scanned object. Understanding this axis is crucial for interpreting images correctly and ensuring accurate diagnoses, as slice thickness affects image quality and detail resolution.

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Y axis

Theta axis

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