FETAL MRI
PROTOCOLS
GENERIC BODY
3 plane localizer
3 planes neuro SS T2 TE 140 if < 30 weeks; TE 100 if >30 weeks all at 4mm/-2
3 planes body SS T2TE 80 ax, sag + coronal 4mm/0
3 planes body bTFEflip1106mm/-3
Coronal T1 bodyeTHRIVE to look at anorectal complex
TE FISTULA/VACTERL
3 plane localizer
3 planes neuro SS T2 TE 140 if < 30 weeks; TE 100 if >30 weeks all at 4mm/-2
3 planes body SS T2TE 80 ax, sag + coronal 4mm/0
3 planes body bTFEflip1106mm/-3
Coronal T1 bodyeTHRIVE
Sagittal T1 body GRE T1 for evaluation of anorectal malformation
Sagittal DYNAMIK in midline to capture esophagus/swallowing, single location; repeat as necessary. Be sure to decrease the thickness of the slab to 10-15
LUNG MASS
3 plane localizer
3 planes neuro SS T2 TE 140 if < 30 weeks; TE 100 if >30 weeks all at 4mm/-2
3 planes body SS T2TE 200 chest axial; TE 80abd/pelvis ax and body sag + coronal 4mm/0
3 planes body bTFE1106mm/-3 consider bTFE basic as possibly better for vascular
Axial EPI bonefor anomalous vessel
Coronal body eTHRIVEfor colonography
DIAPHRAGM HERNIA
3 plane localizer
3 planes neuro SS T2 TE 140 if < 30 weeks; TE 100 if >30 weeks all at 4mm/-2
3 planes body SS T2TE 80 4mm/0
3 planes body bTFE1106mm/-3 *include neck
Coronal body T1eTHRIVE
ABDOMINAL MASS
3 plane localizer
3 planes neuro SS T2 TE 140 if < 30 weeks; TE 100 if >30 weeks all at 4mm/-2
3 planes body SS T2TE 80 4mm/0 if cystic mass, add axial at TE 250
3 planes body bTFE1106mm/-3
Axial body T1eTHRIVE
Axial body EPI blood
ABDOMINAL WALL DEFECT
3 plane localizer
3 planes neuro SS T2 TE 140 if < 30 weeks; TE 100 if >30 weeks all at 4mm/-2
3 planes body SS T2TE 80 4mm/0
3 planes body bTFE 1106mm/-3
Sagittal body T1eTHRIVE
NEURO GENERIC
3 plane localizer
3 planes neuro SS T2 TE 140 if < 30 weeks; TE 100 if >30 weeks
3mm/-1 if <24 weeks; 4mm/-2 if >24 weeks*
Axial neuro T1
Axial DWI + ADCsend B0 image please
Axial neuro EPI blood
3 planes body SS T2TE 80 4mm/0
Sagittal DYNAMIK whole fetus, include legsfor evaluation of movement
NEURAL TUBE DEFECT
3 plane localizer
3 planes neuro SS T2 TE 140 if < 30 weeks; TE 100 if >30 weeks
3mm/-1 if <24 weeks; 4mm/-2 if >24 weeks*
Axial neuro T1
Axial neuro EPI blood
Axial neuro DWI with ADC map
3 planes body SS T2TE 80 4mm/0 coronal/sagittal TE 140 spine 4mm/-2 axial
Axial body T1Through spina bifida defect 4mm/-2
Axial bTFEThroughspina bifida defect 4mm/-2
Sagittal DYNAMIK whole fetus, include legs, in 3 different locations (left lateral for L arm/leg; central; right lateral)
NECK MASS
3 plane localizer
3 planes neuro SS T2 TE 140 if < 30 weeks; TE 100 if >30 weeks
3mm/-1 if <24 weeks; 4mm/-2 if >24 weeks*
Axial neck neuro T1
Axial neck EPI blood
Axial neck cine TFE flow
Sag/cor neck bTFE basic
3 planes body SS T2TE 80 4mm/0 include mass
SACROCOCCYGEAL TERATOMA
3 plane localizer
3 planes neuro SS T2 TE 140 if < 30 weeks; TE 100 if >30 weeks
3 planes body SS T2TE 80 4mm/0 include all of mass
3 planes bTFE110include all of mass
Axial T1 fetal pelviseTHRIVE
Sagittal DYNAMIK whole fetus, include legs
SKELETAL DYSPLASIA
3 plane localizer
3 planes neuro SS T2 TE 140 if < 30 weeks; TE 100 if >30 weeks
3 planes body SS T2TE 80 4mm/0
3 planes bTFE110especially if >30 weeks
3 planes EPI boneif < 30 weeks
Sagittal DYNAMIK whole fetus, include legs
OLIGOHYDRAMNIOS
3 plane localizer
3 planes neuro SS T2 TE 140 if < 30 weeks; TE 100 if >30 weeks
3mm/-1 if <24 weeks; 4mm/-2 if >24 weeks*
3 planes body SS T2TE 80 4mm/0
3 planes bTFE110
Coronal DWI abdomenfor assessment of renal tissue