MR Pediatric Abdomen Liver Mass W/WO Protocol

Revised - 8/13/2013
Charge as Abdomen W/WO
Coil: Size to patient
Localizer
(REF scan)
Mode Slice Gap FAT SAT FOV Scan Range
AXIAL T1 TSE MV MS 3.5mm 1mm None Fit to Patient Above diaphragm to iliac crests
AXIAL T2 TSE MV MS 3.5mm 1mm SPAIR Fit to Patient Above diaphragm to iliac crests
COR STIR TSE MV MS 3.5mm 1mm STIR Fit to Patient Entire abdomen, skin to skin
COR DWIBS IR EPI SS 5mm 1mm None Fit to Patient Entire abdomen, skin to skin
Axial 3D-mDixion pre 2.25eff Fit to Patient Scan Liver
COR T1 TSE MV MS 3.5mm 1mm None Fit to Patient Optional: Only if requested by a radiologist.
Entire abdomen, skin to skin
SAG STIR TSE MV MS 3.5mm 1mm STIR Fit to Patient Optional: On any patient with neuroblastoma or paraspinal mass - or if requested by a radiologist.
Entire abdomen, skin to skin
Contrast Injection
AXIAL 3 phase dynamic 3D-mDixon post 2.25eff Fit to Patient Bolus trak in sagittal plane: trigger when contrast reaches SMA: 3 phases, one right after another (roughly 30, 60, 90 seconds).
Scan liver.
AXIAL 3D-mDixon delayed 2.25eff Fit to Patient Exactly 4 minutes after contrast injection.
Scan liver.
AXIAL T1 TSE MV MS 3.5mm 1mm SPIR Fit to Patient Above diaphragm to iliac crests
COR T1 TSE MV MS 3.5mm 1mm SPIR Fit to Patient Entire abdomen, skin to skin
AXIAL 3D-mDixon delayed 2.25eff Fit to Patient Exactly 10 minutes after contrast injection.
Scan liver.
SAG T1 TSE MV MS 3.5mm 1mm SPIR Fit to Patient Optional: On any patient with neuroblastoma or paraspinal mass- or if specifically requested by a radiologist.
Entire abdomen, skin to skin
Notes: For larger patients, slice thickness may be increased up to 5mm.
For dynamic sequence, patient will need a 22 gauge IV or larger. Power inject pediatric weight-based contrast dose followed by saline flush.
Please do subtractions on mDixons
(subtraction = each of 3 post-contrast sequences – pre-contrast sequence).
Images must be checked by radiologist or radiology resident before patient leaves.