- SAG T1 SE 3/5mm
- AXIAL T2 SE 3/5mm
- AXIAL FLAIR 3/5mm
- CORONAL T2 FSE 4mm/FLAIR 4mm
- DWI in three planes and calculated ADC map
- AXIAL T1 SE 4mm
Optional "Pediatric Brain with Contrast MRI" Sequences
- T2 Gradient (trauma and vascular malformations)
- Dual-echo axial STIR sequence (children under 2years )
TECHNICAL NOTES: "Pediatric Brain with Contrast MRI Protocol"
- MR sequences may disturb the sleeping infant or child and ear protection such as earplugs and baby earmuffs should be used.
- Some motion can be avoided by swaddling infants, keeping them warm, and by placing moulded foam or airbags around the baby’s or child’s head.
- Optimizing imaging of infants requires adjustment of contrast and resolution parameters.
- The high heart rates of small children lead to more flow artifacts compared to adults. Note that the number of packages affects flow artifacts in FLAIR. Dividing FLAIR scans into more packages reduces flow sensitivity. It costs more scan time, but reduces the potential for misinterpretation of images.
- DWI is acquired in all children unless artefacts from, for example, dental braces or a ventriculoperitoneal shunt, preclude it, and an ADC is calculated using automated computer software and provided for reporting.
- In some cases, a T2*-W gradient-echo (GE) sequence (“susceptibility-weighted” sequence), sensitive to changes in local field inhomogeneity caused by the breakdown products of haemoglobin, is added. The sequence is particularly useful in trauma and vascular malformations such as multiple cavernomas.
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