Cerebrospinal Fluid Flow 3.0T

GE Healthcare – MR Gadopiclenol (VUEWAY®) Protocols

Instructions And Patient Preparation

Indications

To be used for CSF Flow studies for Aqueduct, 3rd Ventricle Evaluation and Chiari Malformations

Instructions

• Cine PC (phase-contrast) are cardiac or peripheral gated
• Contrast is not usually used for this study but the 3D postcontrast images can be useful to look at the anatomy

Position

Head first, supine

Coil

Head, 8 channel or HNU

Landmark

Nasion

Special Instructions

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Aqueduct & 3rd Ventricle/ Foramen
SAGITTAL

Chiari-Center Foramen Aqueduct-Center
3rd Ventricle

Imaging Parameters

Scan Description	SAGITTAL 3D T2 CUBE	Head: Aqueduct & 3rd Ventricle: SAGITTAL T2 CUBE Non-gated	Head: Aqueduct AXIAL CINE PC Flow Directions	Head: Aqueduct AXIAL FAST PC Flow Analysis	Head: Midline Aqueduct SAGITTAL CINE PC Flow Directions

Primary Sequence	Yes T2	Yes	Yes	Yes	Yes
Mode	3D	3D	CINE	2D	CINE
Pulse Sequence	CUBE	CUBE T2	VASC PC	VASC PC	VASC PC
Imaging Options	EDR, FAST, FR, ZIP2, ARC	EDR, FAST, FR, ZIP2, ARC	FC, SEQ	FC, SEQ, GATE, FR	FC, SEQ

Scan Parameters

Scan Description	SAGITTAL 3D T2 CUBE	Head: Aqueduct & 3rd Ventricle: SAGITTAL T2 CUBE Non-gated	Head: Aqueduct AXIAL CINE PC Flow Directions	Head: Aqueduct AXIAL FAST PC Flow Analysis	Head: Midline Aqueduct SAGITTAL CINE PC Flow Directions

TE	82	90	Def	Min	Def
TR	2500	2500	30	Def	30
Flip Angle	―	―	15	15	―
ETL	100	100	―	―	―
Bandwidth	62	62	15	31	20
Sat	―	―	14 Phases	―	―

Acquisition Parameters

Scan Description	SAGITTAL 3D T2 CUBE	Head: Aqueduct & 3rd Ventricle: SAGITTAL T2 CUBE Non-gated	Head: Aqueduct AXIAL CINE PC Flow Directions	Head: Aqueduct AXIAL FAST PC Flow Analysis	Head: Midline Aqueduct SAGITTAL CINE PC Flow Directions

MATRIX freq	320	256	256	256	256
MATRIX phase	320	256	192	192	192
NEX	1	1	1	1	1
Phase FOV	0.9	0.9	―	―	―
FC Direction	S/I	―	Slice	Slice	Slice
User CV	ACC=2 OPT HS 1.2	―	Venc 20 Fl Anlys On	Venc 20 Fl Anlys On VPS 4 Trig Delay Min	Venc 10 Fl Anlys On Phase-14 Loc/acq-1

Scanning Range

Scan Description	SAGITTAL 3D T2 CUBE	Head: Aqueduct & 3rd Ventricle: SAGITTAL T2 CUBE Non-gated	Head: Aqueduct AXIAL CINE PC Flow Directions	Head: Aqueduct AXIAL FAST PC Flow Analysis	Head: Midline Aqueduct SAGITTAL CINE PC Flow Directions

FOV	25	25 x 23	20 x 20	20 x 20	20 x 20
Slice Thickness	1.6	1.2/0	10 mm-1 Slice	10 mm-1 Slice	10 mm-1 Slice
Spacing	―	S/I	A/P	A/P	A/P
Vascular Card Instructions	112	Phase 2 Slice 2	Phase=14 I locRecon Phase Dir and Magnitude	Recon Phase Dir -#Phase Recon-14	Recon Phase Dir
Scan Time	2:30 min	3-5 min	2-4 min	4-5 min	3-5 min
Total Scan Time Head: Aqueduct & 3rd Ventricle	14-23 min