Scintigraphic gastric emptying assessment in gastric stasis and gastric dumping

Scintigraphic study in gastric stasis (left panel) and gastric dumping (right panel) at two and four hours; the blue hatched lines at two and four hours refer to normal gastric retention. Compared with normals, the tracer is removed more slowly at two and four hours with gastric stasis, and more rapidly at two hours with gastric dumping.