Does an ivp x-ray show kidney stones when they don't show up on a kub x-ray and can someone still have a stone if none is seen on a kub x-ray?

CT scan is better: Ct scan is now preferred test for kidney stones. Radio opaque stone can be seen on kub is the stone is big enough for x ray; ct can detect smaller ones. Ivp rarely being used.

Yes: Ivp xray can show stones not visible on kub x ray. Best is to perform an non contrast ct scan. Some stones like uric acid and pigment stones do not show up on a x ray.