MR Orbits WO - Limited
Indication: This is a limited MRI exam of the obits used to assess orbital inflammation, primarily in patients with known or suspected thyroid eye disease, under the care of a rheumatologist or ophthalmologist.
Coronal orbits coverage: Anterior margin of globe to anterior surface of pons, perpendicular to axis of the orbital segment of the optic nerves.
Sagittal coverage: Same as from the Face, Sinus & Skull Base protocol. Ear-to-ear, top of frontal sinus to hyoid bone and all of mandible, centered on posterior nasal cavity with FOV of about 180 x 180. Okay to exclude posterior neck/brain and superior brain.
Last updated: 3/8/22
Charge as: Orbits WO
Scanner preference: Avoid MR1 if possible
Coil: Head
Plane | Weighting | Mode | Slice (mm) | Gap (mm) | FAT SAT | FOV (cm) | MPR | Notes |
---|---|---|---|---|---|---|---|---|
COR | STIR | 2D TSE | 2 | 0.25 | YES | 17 | no | Orbits only. Coronal coverage details above. |
SAG | T1 | 3D TSE | 0.7 | 0 | no | 18 | AXIAL, COR | See sagittal coverage note above. |