Which axis represents width in a 3D imaging context?

In a 3D imaging context, the axis that represents width is the X axis. In three-dimensional coordinate systems, the axes are typically defined as follows: the X axis represents width or horizontal dimensions, the Y axis represents height or vertical dimensions, and the Z axis represents depth, providing a full spatial relationship within the generated image. Understanding these axes is crucial for interpreting 3D images effectively, as they allow for precise localization and measurement of structures. The W axis is not commonly used in standard 3D imaging and does not have a specific dimensional representation in this context.