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HFO High resolution knee with SENSE

ExamCard
Wirtanen, Pirjo Philips Healthcare Philips Global

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ExamCard purpose

This Panorama HFO Release 2 ExamCard provides a collection of protocols to choose from for knee imaging using the ST Extremity coil. The protocols are arranged in the ExamCard according to contrast.

 

SENSE is used to achieve higher resolution. When coils are positioned perpendicularly (see below), SENSE can be used in all directions. Scan times are about 5 minutes per protocol.

 

FOV is 130*130 mm in the transverse plane and 150*140 mm in the sagittal and  coronal planes. Pixel sizes range from 0.35*0.40 mm to 0.70*0.70 mm

 

Scans in the sagittal plane use phase direction A-P, so that some popliteal flow artefact may occur. REST is used to eliminate that.

ExamCard overview

SENSE HiRes Knee
Scan 1Survey
Scan 2Ref Scan
Scan 3T1w TSE tra
Scan 4T1w SPIR
Scan 5T2w TSE
Scan 6T2w SPAIR
Scan 7T2*w In-phase FFE
Scan 8T2*w FFE Out-phase
Scan 9PDw DRIVE
Scan 10PDw DR SPAIR
Scan 11STIR LongTE
Scan 12WATSc
Scan 13WATSf

ExamCard images

T1w TSE transversal FOV 130 mm <br>Voxel 0.35*0.39*3.0 mm <br>SENSE factor 1.4 <br>Scan time 4:50 min.T1w TSE sagittal FOV 150*140 mm <br>Voxel 0.36*0.39*1.5 mm <br>SENSE factor 1.8 <br>Scan time 5:06 min.T1w SPIR coronal FOV 150*140 mm <br>Voxel 0.58*0.64*3.0 mm <br>SENSE factor 1.5 <br>Scan time 4:30 min.
T1w TSE transversal
T1w TSE sagittal
T1w SPIR coronal
FOV 130 mm
Voxel 0.35*0.39*3.0 mm
SENSE factor 1.4
Scan time 4:50 min.
FOV 150*140 mm
Voxel 0.36*0.39*1.5 mm
SENSE factor 1.8
Scan time 5:06 min.
FOV 150*140 mm
Voxel 0.58*0.64*3.0 mm
SENSE factor 1.5
Scan time 4:30 min.
T2w TSE transversal FOV 130 mm <br>Voxel 0.38*0.42*3.0 mm <br>SENSE factor 2.0 <br>Scan time 5:03 min.T2*w FFE sagittal FOV 150*140 mm <br>Voxel 0.38*0.42*3.0 mm <br>SENSE factor 2.0 <br>Scan time 5:03 min.T2w SPAIR coronal FOV 150*140 mm <br>Voxel 0.50*0.58*3.0 mm <br>SENSE factor 1.5 <br>Scan time 5:06 min.
T2w TSE transversal
T2*w FFE sagittal
T2w SPAIR coronal
FOV 130 mm
Voxel 0.38*0.42*3.0 mm
SENSE factor 2.0
Scan time 5:03 min.
FOV 150*140 mm
Voxel 0.38*0.42*3.0 mm
SENSE factor 2.0
Scan time 5:03 min.
FOV 150*140 mm
Voxel 0.50*0.58*3.0 mm
SENSE factor 1.5
Scan time 5:06 min.
PDw DRIVE transversal FOV 130 mm <br>Voxel 0.36*0.40*3.0 mm <br>SENSE factor 1.7 <br>Scan time 4:11 min.PDw DRIVE SPAIR sagittal FOV 150*140 mm <br>Voxel 0.64*0.68*3.0 mm <br>SENSE factor 1.7 <br>Scan time 5:11 min.
PDw DRIVE transversal
PDw DRIVE SPAIR sagittal
FOV 130 mm
Voxel 0.36*0.40*3.0 mm
SENSE factor 1.7
Scan time 4:11 min.
FOV 150*140 mm
Voxel 0.64*0.68*3.0 mm
SENSE factor 1.7
Scan time 5:11 min.
WATSf transversal FOV 130 mm <br>Voxel 0.50*0.50*1.5 mm <br>SENSE factor 2.0 <br>Scan time 5:01 min.WATSc coronal FOV 140*130 mm <br>Voxel 0.50*0.50*1.5 mm <br>SENSE factor 1.8 <br>Scan time 5:27 min.STIR Long TE coronal FOV 150*140 mm <br>Voxel 0.62*0.66*3.0 mm <br>SENSE factor 2.0 <br>Scan time 4:33 min.
WATSf transversal
WATSc coronal
STIR Long TE coronal
FOV 130 mm
Voxel 0.50*0.50*1.5 mm
SENSE factor 2.0
Scan time 5:01 min.
FOV 140*130 mm
Voxel 0.50*0.50*1.5 mm
SENSE factor 1.8
Scan time 5:27 min.
FOV 150*140 mm
Voxel 0.62*0.66*3.0 mm
SENSE factor 2.0
Scan time 4:33 min.

Coil positioning

Carefully position the coil elements perpendicularly. Position the loop around the knee over the lower part of the patella, and the other loop on the side. The side coil can be either handle up or down.

 

The other leg should be as far as possible to avoid foldover when using an R-L phase direction.

 

Make sure to avoid loops in coil cables!

Coil positioning Use the leg support or a normal head pillow under the lower leg. Eliminate any loops in coil cables.
Coil positioning
Use the leg support or a normal head pillow under the lower leg. Eliminate any loops in coil cables.


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ExamCard
Panorama HFO
Release 2
Pulsar
1.0T, 1T, Knee, Musculoskeletal
 

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