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If using a larger surface coil, use high res (3mm’s, 160x160mm FoV) STIR sequences in place of the small FoV T2 Fat Sat’s and T1’s.
This technique is entirely dependent upon the availability of a small Field of View surface coil (see below). If your unit does not possess one, complete the recommended sequences, using either the spine coil or a larger surface coil – if possible, the patient should be positioned to lie on the affected side (this minimizes motion artefact from breathing).
Patient Positioning (Critically Important)
Ascertain the exact position of the suspected tear and mark this with an oil capsule. Position the coil over the capsule and secure in place with tape and/or bandages. Position the patient supine and plug the coil in. Check that the capsule/coil haven‟t moved from original position.
Protocols
- Large Field of View localiser
- Large Field of View FISP‟s (oil capsule finder) in all 3 planes
- Large Field of View STIR Coronal of whole abdo (include oil capsule) – provides the Radiologist with an accurate (Rib) level of where the tear is.
- Small FoV (80x80mm) T2FS Axial centred on oil capsule (in Fig.5a & 5b)
- Small FoV T1 Axial (as above)
- Small FoV (80x80mm) T2FS Coronal Oblique (as in Fig.6)
- Small FoV T1 Coronal Oblique (as above)
- Check with Radiologist/Clinician
If using a larger surface coil, use high res (3mm’s, 160x160mm FoV) STIR sequences in place of the small FoV T2 Fat Sat’s and T1’s.
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