Intrahepatic bile duct stones can generally be detected via ultrasound, as they show up as strong echoes due to their solid nature which reflects sound waves back to the surface.

However, the majority of these intrahepatic bile duct stones are asymptomatic. Since they rarely cause dilation of the intrahepatic bile ducts, and as long as the bile ducts do not appear dilated, thickened, or tortuous on the ultrasound, they usually do not have any significant impact. Therefore, most intrahepatic bile duct stones do not require treatment and can be managed through observation.