Integrated Problems Radiology: Right Upper Quadrant Pain

When an US is actually being acquired, the images are real-time, meaning that things are moving around (as the patient is breathing, and the transducer on the patient's skin is being moved around). This will actually make most structures easier to see than on a still image. Look for the CBD stone on this movie. As the transducer sweeps back and forth over the CBD, the stone is easier to pick up than on the single still image.