A bone scan can often find a problem days to months earlier than a regular X-ray test. During a bone scan, a radioactive substance called a tracer is injected into a vein in your arm. The tracer travels through your bloodstream and into your bones. Then a special camera takes pictures of the tracer in your bones.
Ogden filed a complaint in the Court of Chancery of New York asking the court to stop Gibbons from operating his boats. Ogden claimed that the monopoly granted by New York was legal even though he operated on shared, interstate waters between New Jersey and New York.
The applicability of Congress' power to the agents and instruments of commerce is implied in Marshall's opinion in Gibbons v. Ogden, 628 where the waters of the State of New York in their quality as highways of interstate and foreign transportation were held to be governed by the overriding power of Congress.