Cardinal Movements

Sliding refers to moving the entire probe in one direction to improve the imaging window. This motion is typically used to locate the best view, scan different areas of the body, or track a structure like a vessel.

Sweeping involves moving the probe side-to-side along its short axis (imagine fanning your face with your hand). This motion helps visualize multiple cross-sectional images of a structure.

Rocking involves moving the probe along its long axis,  towards or away from the probe indicator. This motion helps center the area of interest while keeping the image in-plane.

Rotation refers to turning the probe along its central axis (clockwise or counterclockwise). This motion is commonly used to transition between the long and short axis views of structures, such as vessels, the heart, or the kidneys.