MR Peds Appendicitis WO Protocol
Notes
Last updated: 1/13/2022
Charge as: Abdomen WO
Scanner preference: MRI 1, 2, 4 only
Coil: Torso
Scan Time: Approximately 20-30 minutes for cooperative patient
Radiologist Notes:
- No radiologist check needed
- Run 3 Plane T2 sequences first
- Check notes for each sequence before sending images to Pacs
- If patient cannot hold breath or cooperate with exam, use a negative slice gap equal to one-half the slice thickness (e.g., a 50% slice overlap, so if you are using 4mm slices, use a -2mm gap) and run the sequences without breath holds.
| Plane | Weighting | Mode | Slice | Gap | FS | FOV | Notes |
|---|---|---|---|---|---|---|---|
| COR | T2 Single-Shot | BH | 3-4mm | -1.0mm | None | Above Diaphragm to below pubic symphysis | Cover through abdominal walls. |
| AX | T2 Single-Shot | BH | 3-5mm | -1.0mm | None | Cover entire kidneys through pubic symphysis. | OK to clip liver. |
| SAG | T2 Single-Shot | BH | 3-4mm | -1.0mm | None | Fit to Patient | Cover through abdominal walls. |
| AX | mDixon | BH | 2.25mm (3D volume) | None | Cover entire kidneys through pubic symphysis. | OK to clip liver. Send all phases to PACS. | |
| AX | DWI (b1000 only) | RT | 5mm | 1mm | SPIR | Cover entire kidneys through pubic symphysis. | Send b1000 and ADC images only. |
| AX | T2 FS TSE | 3.5mm | 0mm | SPAIR | Cover entire kidneys through pubic symphysis. | Do not use older protocol SSFSE fat sat |