Body Part - Misc
FAST SPIN ECHO
An MRI technique used to characterize tissue. It is also called “FSE”.
FDG
Type of sugar given for PET scans. PET scan shows where the sugar is concentrated. Cancer and infection/inflammation usually require large amount of sugar, allowing PET scans to identify areas of cancer and infection/inflammation.
FDG-avid
Refers to anything that concentrates FDG (type of sugar used for PET scans). Cancer and infection/inflammation are usually FDG-avid.
FLAIR
An MRI technique that help to characterize any tissue containing fluid. On FLAIR, any fluid structure, like the CSF in the brain, turns dark. Any white spots that remain are usually not normal and could be the result of mini-strokes amongst other diseases.
GRADE
Refers to size and appearance of cancer. Generally higher grade is worse.
GRADIENT
A type of MRI sequence that is used to help characterize tissue that contains iron, blood, or calcium.
GRADIENT SUSCEPTIBILITY
A darkening effect on MR scans that occurs with tissue containing blood products, calcium, or iron.
GRE
Gradient sequence on MRI.
HIDA SCAN (HEPATOBILIARY SCAN)
Type of Nuclear Medicine exam that can determine whether your gallbladder is sick (cholecystitis).
HYPERATTENUATING
Appears bright (white) on CT. This can help Radiologists characterize the abnormality on CT.
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