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Rectal Cancer 3T

Siemens Healthineers – MR Gadopiclenol (VUEWAY®) Protocols

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Instructions And Patient Preparation

Instructions
• Have patient empty bladder before scanning
• Optional: Patient could take a Fleet enema prior to appointment
• NPO for 4 hours prior to study recommended (reduces bowel motion)
• Small field of view imaging must be angled to the mass
• MD to check for Axial and Coronal Oblique angulations (true to rectal mass)
Common Indication
Rectal cancer staging
Position
Supine; head or feet first
Coil
Body Array (anterior); Spine Array (posterior)
Landmark
Center of coil; below belly button; adjust after LOC using ISO mode imaging

Contrast Agent Parameters

Contrast Agent Dose Injection Rate Dose Timing Method and Scan Delay
Gadopiclenol (VUEWAY) 0.05 mmol/kg 2 mL/sec Refer to postcontrast timing below
Saline Flush 20 mL 2 mL/sec —
Comments • Report agent administered and dose
• Use minimal dose for patients with a GFR <30 mL/sec

Imaging Parameters

Scan Description 3 PLANE
HASTE
LOCALIZER		 AXIAL
DWI		 AXIAL
T2 Hi Res		 SAGITTAL
T2 Hi Res		 CORONAL
T2 Hi Res		 AXIAL
3D In-Out-
of-Phase		 SAGITTAL
VIBE Pre		 CORONAL
VIBE Pre		 AXIAL
VIBE Pre		 AXIAL
VIBE Post
Arterial
60 sec
180 sec		 SAGITTAL
VIBE Post
60 sec		 CORONAL
VIBE Post
60 sec
180 sec
    View Image   View Image View Image View Image View Image View Image View Image View Image View Image View Image
Sequence Name h epse tse tse tse fl fl fl fl fl fl fl
Dimension 2D — 2D 2D 2D 3D 3D 3D 3D 3D 3D 3D
Acceleration mode GRAPPA SMS GRAPPA GRAPPA GRAPPA CAIPIRINHA CAIPIRINHA CAIPIRINHA CAIPIRINHA CAIPIRINHA CAIPIRINHA CAIPIRINHA
Acceleration Factor PE 2 2 2 2 2 2 2 2 2 2 2 2
Acceleration Factor 3D — — — — — 2 2 2 2 2 2 2

Scan Parameters

Scan Description 3 PLANE
HASTE
LOCALIZER		 AXIAL
DWI		 AXIAL
T2 Hi Res		 SAGITTAL
T2 Hi Res		 CORONAL
T2 Hi Res		 AXIAL
3D In-Out-
of-Phase		 SAGITTAL
VIBE Pre		 CORONAL
VIBE Pre		 AXIAL
VIBE Pre		 AXIAL
VIBE Post
Arterial
60 sec
180 sec		 SAGITTAL
VIBE Post
60 sec		 CORONAL
VIBE Post
60 sec
180 sec
                         
TR 1000 ms 3000 ms 5600 ms 5000 ms 4500 ms 4.3 ms 4.6 ms 4.6 ms 4.6 ms 4.6 ms 4.6 ms 4.6 ms
TE 112 ms 60 ms 111 ms 112 ms 111 ms 1: 1.34 ms
2: 2.76 ms		 2.17 ms 2.17 ms 2.17 ms 2.17 ms 2.17 ms 2.17 ms
Flip Angle 105 deg — 160 deg 160 deg 160 deg 9 deg 10 deg 10 deg 10 deg 10 deg 10 deg 10 deg
Turbo Factor 256 — 23 25 23 — — — — — — —
Bandwidth 698 Hz/Px 2084 Hz/Px 256 Hz/Px 200 Hz/Px 256 Hz/Px 870 Hz/Px 380 Hz/Px 380 Hz/Px 380 Hz/Px 380 Hz/Px 380 Hz/Px 380 Hz/Px
Fat-Water Contrast Standard SPAIR Standard Standard Standard Standard Fast Fat Saturation Fast Fat Saturation Fast Fat Saturation Fast Fat Saturation Fast Fat Saturation Fast Fat Saturation
Fat Saturation — Strong — — — — — — — — — —
Gradient Mode Fast Fast Normal Normal Normal Fast Fast Fast Fast Fast Fast Fast
RF Pulse Type Normal Low SAR Low SAR Low SAR Low SAR Fast Fast Fast Fast Fast Fast Fast
Asymmetric Echo — — — — — Off Off Off Off Off Off Off

Acquisition Parameters

Scan Description 3 PLANE
HASTE
LOCALIZER		 AXIAL
DWI		 AXIAL
T2 Hi Res		 SAGITTAL
T2 Hi Res		 CORONAL
T2 Hi Res		 AXIAL
3D In-Out-
of-Phase		 SAGITTAL
VIBE Pre		 CORONAL
VIBE Pre		 AXIAL
VIBE Pre		 AXIAL
VIBE Post
Arterial
60 sec
180 sec		 SAGITTAL
VIBE Post
60 sec		 CORONAL
VIBE Post
60 sec
180 sec
                         
Base Resolution 256 160 320 320 320 320 256 256 256 256 256 256
Phase Resolution 100% 100% 100% 100% 100% 75% 75% 75% 75% 75% 75% 75%
Slice Resolution — — — — — 57% 60% 60% 60% 60% 60% 60%
Averages 1 3 2 2 2 1 1 1 1 1 1 1
Concatenations 1 1 2 2 2 1 1 1 1 1 1 1
b-value >= — 0 s/mm2
50 s/mm2
800 s/mm2		 — — — — — — — — — —
FoV Read 380 mm 380 mm 170 mm 200 mm 170 mm 380 mm 260 mm 260 mm 260 mm 260 mm 260 mm 260 mm
FoV Phase 100% 80% 100% 100% 100% 81% 100% 100% 100% 100% 100% 100%
Phase Encoding Dir. R >> L A >> P R >> L H >> F R >> L A >> P A >> P R >> L A >> P A >> P A >> P R >> L
Slice Oversampling — — — — — 36% 33% 33% 20% 20% 33% 33%
Phase Partial Fourier 4/8 — Allowed Off Allowed Off Off Off Off Off Off Off
Slice Partial Fourier — — — — — 7/8 6/8 6/8 6/8 6/8 6/8 6/8
Flow Compensation None — None None None — — — — — — —

Scanning Range

Scan Description 3 PLANE
HASTE
LOCALIZER		 AXIAL
DWI		 AXIAL
T2 Hi Res		 SAGITTAL
T2 Hi Res		 CORONAL
T2 Hi Res		 AXIAL
3D In-Out-
of-Phase		 SAGITTAL
VIBE Pre		 CORONAL
VIBE Pre		 AXIAL
VIBE Pre		 AXIAL
VIBE Post
Arterial
60 sec
180 sec		 SAGITTAL
VIBE Post
60 sec		 CORONAL
VIBE Post
60 sec
180 sec
                         
Elliptical Filter Off Off Off Off Off Off Off Off Off Off Off Off
Normalize Prescan Prescan Prescan Prescan Prescan Prescan Prescan Prescan Prescan Prescan Prescan Prescan
Distortion Correction 2D 2D 2D 2D 2D 2D 2D 2D 2D 2D 2D 2D
Slice Thickness 6.0 mm 7.0 mm 3.0 mm 3.0 mm 3.0 mm 3.0 mm 3.0 mm 3.0 mm 3.0 mm 3.0 mm 3.0 mm 3.0 mm
Distance Factor 175% 0% 0% 0% 0% 20% 20% 20% 20% 20% 20% 20%
Slices 13 Slices 36 Slices 45 Slices 34 Slices 36 Slices 88 Slices
per Slab		 72 Slices
per Slab		 72 Slices
per Slab		 80 Slices
per Slab		 80 Slices
per Slab		 72 Slices
per Slab		 72 Slices
per Slab
Time of Acquisition 35 sec 1:51 min 5:26 min 4:12 min 4:23 min 19 sec 17 sec 19 sec 17 sec 17 sec 17 sec 19 sec