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HFO Ankle with the ST Extremity coil and SENSE

ExamCard
Wirtanen, Pirjo Philips Healthcare Philips Global

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ExamCard purpose

This release 2 Panorama HFO Examcard provides a collection of protocols for ankle imaging. The protocols are optimized for the ST Extremity coil utilizing SENSE and are arranged according to contrast.

 

SENSE is used to achieve higher resolution with scan times of approximately 5 minutes per protocol. For the transverse and coronal planes the FOV is 130 x 100 mm, while in the sagittal plane it is 130 x 130 mm. Voxel sizes range from 0.36 x 0.40 x 3.0 mm to 0.58 x 0.66 x 3.0 mm.

ExamCard overview

Ankle with the ST Extremity coil and SENSE
Scan 1Survey
Scan 2Ref Scan
Scan 3T1w TSE
Scan 4T1w SPIR
Scan 5T1w 3D FFE
Scan 6T2w TSE
Scan 7T2w SPAIR
Scan 8T2*w FFE Inpahse
Scan 9T2*w FFE Outpahse
Scan 10PDw DRIVE
Scan 11PDw DR SPAIR
Scan 12STIR LongTE
Scan 13WATSc
Scan 14WATSf

ExamCard images

T1w TSE transversal FOV 130 x 100 mm<br> Voxel size 0.36 x 0.39 mm<br> 
Slice thickness 3.0 mm<br>
SENSE  factor 1.5<br>
Scan time 3:27 min.T1w 3D FFE coronal FOV 130 x 100 mm<br>
Voxel size 0.37 x 0.39 mm<br>
Slice thickness 2.0 mm<br> SENSE factor 1.4<br>
Scan time 4:25 min.T1w SPIR sagittal FOV 130 mm<br>
Voxel size 0.58 x 0.61 mm<br>
Slice thickness 3.0 mm<br>
SENSE factor 1.9<br>
Scan time  4:24 min.
T1w TSE transversal
T1w 3D FFE coronal
T1w SPIR sagittal
FOV 130 x 100 mm
Voxel size 0.36 x 0.39 mm
Slice thickness 3.0 mm
SENSE factor 1.5
Scan time 3:27 min.
FOV 130 x 100 mm
Voxel size 0.37 x 0.39 mm
Slice thickness 2.0 mm
SENSE factor 1.4
Scan time 4:25 min.
FOV 130 mm
Voxel size 0.58 x 0.61 mm
Slice thickness 3.0 mm
SENSE factor 1.9
Scan time 4:24 min.
T2w TSE transversal FOV 130 x 100 mm<br>
Voxel size 0.37 x 0.39 mm<br>
Slice thickness 3.0 mm,<br>
SENSE factor 1.6 <br>
Scan time 4:17 min.T2w SPAIR coronal FOV 130 x 100 mm<br>
Voxel size 0.52 x 0.60 mm<br> 
Slice thickness 3.0 mm<br>
SENSE factor 1.5 <br>
Scan time 4:26 min.T2*w FFE Inpahse sagittal FOV 130 mm<br>
Voxel size 0.45 x 0.47 mm<br> 
Slice thickness 3.0 mm<br>
SENSE factor 1.6<br>
Scan time 5:15 min.
T2w TSE transversal
T2w SPAIR coronal
T2*w FFE Inpahse sagittal
FOV 130 x 100 mm
Voxel size 0.37 x 0.39 mm
Slice thickness 3.0 mm,
SENSE factor 1.6
Scan time 4:17 min.
FOV 130 x 100 mm
Voxel size 0.52 x 0.60 mm
Slice thickness 3.0 mm
SENSE factor 1.5
Scan time 4:26 min.
FOV 130 mm
Voxel size 0.45 x 0.47 mm
Slice thickness 3.0 mm
SENSE factor 1.6
Scan time 5:15 min.
T2*w FFE Outpahse FOV 130 x 100 mm<br>
Voxel size 0.50 x 0.50 mm<br>
Slice thickness 3.0 mm,<br>
SENSE factor 1.4<br>
Scan time  5:07min.PDw DRIVE coronal FOV 130 x 100 mm<br> 
Voxel size 0.36 x 0.39 mm<br>
Slice thickness 3.0 mm<br>
SENSE factor 1.6 <br> 
Scan time 4:00 min.PDw DRive SPAIR sagittal FOV 130 mm<br> 
Voxel size 0.50 x 0.60 mm<br>
Slice thickness 3.0 mm<br>
SENSE factor 1.5<br>
Scan time 4:37 min.
T2*w FFE Outpahse
PDw DRIVE coronal
PDw DRive SPAIR sagittal
FOV 130 x 100 mm
Voxel size 0.50 x 0.50 mm
Slice thickness 3.0 mm,
SENSE factor 1.4
Scan time 5:07min.
FOV 130 x 100 mm
Voxel size 0.36 x 0.39 mm
Slice thickness 3.0 mm
SENSE factor 1.6
Scan time 4:00 min.
FOV 130 mm
Voxel size 0.50 x 0.60 mm
Slice thickness 3.0 mm
SENSE factor 1.5
Scan time 4:37 min.
STIR LongTE transversal FOV 130 x 100 mm<br>
Voxel size 0.58 x 0.63 mm<br>  
Slice thickness 3.0 mm<br>
SENSE factor 1.4<br> 
Scan time  4:48 min.WATSc coronal FOV 130 x 100 mm<br> 
Voxel size 0.38 x 0.38 mm<br> 
Slice thickness 1.5mm<br>
SENSE factor 2.0<br>
Scan time 5:00 min.WATSf sagittal FOV 130 mm<br> 
Voxel size 0.50 x 0.50 mm<br>
Slice thickness 1.5 mm<br>
SENSE factor 1.9<br>
Scan time 5:15 min.
STIR LongTE transversal
WATSc coronal
WATSf sagittal
FOV 130 x 100 mm
Voxel size 0.58 x 0.63 mm
Slice thickness 3.0 mm
SENSE factor 1.4
Scan time 4:48 min.
FOV 130 x 100 mm
Voxel size 0.38 x 0.38 mm
Slice thickness 1.5mm
SENSE factor 2.0
Scan time 5:00 min.
FOV 130 mm
Voxel size 0.50 x 0.50 mm
Slice thickness 1.5 mm
SENSE factor 1.9
Scan time 5:15 min.

Patient positioning

Position the coil elements very carefully perpendicular to each other. The loop around the ankle should be positioned over the joint, with the other loop along the side of the ankle (see photo below). The coil can be placed with the handles either up or down.

 

Use accessories and sand bags to stabilize the coil and for patient comfort.

 

The unaffected leg should be placed as far as possible to the side to avoid fold-over artifacts when using the phase direction R-L.

 

Be very careful not to create any loops with the coil cables!

Coil positioning Pads or a normal pillow can be used under the lower leg. Note: Coil cables must not create loops.
Coil positioning
Pads or a normal pillow can be used under the lower leg. Note: Coil cables must not create loops.


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Jul 24, 2008

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ExamCard
Panorama HFO
Release 2
Pulsar
Ankle, Musculoskeletal
 

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