MRCP and heavily T2-weighted MRI: how they work
Only still fluid is bright, so ducts and cysts look like a map. This is how it is set up and what to watch for.
Heavily T2-weighted (MRCP, myelography, urography)
Only static fluid is bright; everything else has decayed to black.
A map of fluid-filled channels without contrast: bile and pancreatic ducts, thecal sac, urinary tract, inner ear.
Fluid in stomach and bowel overlaps the ducts. Read the thin source images, not only the projection.
This page is one entry from the MRI Technologist Reference
The full reference has 31 protocols, 9 dynamic study timelines, 19 artifacts, 16 scanner problems and 15 safety topics, as a PDF in English and Arabic plus an interactive tool.
Educational reference. It does not replace your site protocols, the radiologist's instructions, the MR safety officer, or the manufacturer's instructions for any implant, device or contrast agent. Parameter values are typical starting points at 1.5 T and must be adapted to the scanner, coil and patient.