A small amount of fluid build up at the joint, possilby a sign of slight arthritis, mild gout or a moderate physical trauma ( for example a fall onto the knee).
It depends on what the problem with the elbow is. If it is a bone related injury then the CT scan will show more detail but if the problem is with the muscles or ligaments, then the MRI Scan will be more useful.
Im pretty sure it just means a very small amount of effusion.
The movement of gas through a small hole into an area of lower pressure is diffusion.
effusion
fluid inside the knee joint
EFFUSION
T2 hyperintesities is a medical term used to describe high intensity areas viewed on an MRI image. In the elbow, it basically means that there is reduced blood flow to that area of the body.
effusion is the process where individual molecules flow through a hole without collisions between molecules. effusion is the process where the gas molecules are passed through a small opening to an evacuated chamber
The contrast needs to be lowered. This allows for more "gray" to develop in the radiograph, which is what the effusion will show up as. With high contrast radiographs, abdominal fat, effusion fluid and the abdominal viscera tend to blend together.
elbow grease
The plural form of the noun 'effusion' is effusions.