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Ingenia 3.0T mDIXON TSE for foot/ankle - CHRU Lille

ExamCard
Lefebvre, Guillaume, M.D. CHRU Lille • France

Download ExamCard T1W_mDIXON_TSE_SAG (foot/ankle)

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ExamCard purpose

This ExamCard was created on Ingenia 3.0T with release 5.1.7.

One of the benefits of using mDIXON TSE in orthopedic imaging is that different image contrasts are reconstructed from one scan. Therewith, the duration of the examination can be reduced.

 

This ExamCard provides sagittal T1W mDIXON TSE scan pre- and post-contrast, covering the ankle and forefoot. 

Three different image types are reconstructed:

  1. In-phase images
  2. Water images; and
  3. Fat images.

With that, the necessary imaging contrasts are achieved within one scan, where the

  1. in-phase images provide visualization of anatomical abnormalities such as small calcaneal entheseophyte and fibre disruption of the Achilles' tendon.
  2. water images provide excellent homogeneous fat saturation over the complete FOV of 281 mm of this challenging anatomy. In addition, they allow us to see edematous changes of tendons, surrounding soft tissue and bone structure.

ExamCard overview

 ExamCard (scan) duration 4:44 minutes
ExamCard (scan) duration 4:44 minutes

ExamCard images

T1W mDIXON TSE in phase, post contrast Scan time 4:44 min. <br> 
TR 530 ms, TE 15 ms <br> 
FOV 198 x 281 x 66 mm <br> 
voxels 0.39 x 0.39 x 2.5 mm <br> 
24 slices, SENSE factor 1.2 <br>
<brT1W mDIXON TSE water, post contrast Scan time 4:44 min. <br> 
TR 530 ms, TE 15 ms <br> 
FOV 198 x 281 x 66 mm <br> 
voxels 0.39 x 0.39 x 2.5 mm <br> 
24 slices, SENSE factor 1.2 <br>
<br
T1W mDIXON TSE in phase, post contrast
T1W mDIXON TSE water, post contrast
Scan time 4:44 min.
TR 530 ms, TE 15 ms
FOV 198 x 281 x 66 mm
voxels 0.39 x 0.39 x 2.5 mm
24 slices, SENSE factor 1.2
Scan time 4:44 min.
TR 530 ms, TE 15 ms
FOV 198 x 281 x 66 mm
voxels 0.39 x 0.39 x 2.5 mm
24 slices, SENSE factor 1.2

Patient preparation and positioning

Position the patient feet first on the patient support. The foot is placed in the dS FootAnkle coil positioned at the magnet end of the tabletop.

Provide the patient with the necessary hearing protection and the nurse call. 

Tips

1. Scan duration can be reduced by reasonably increasing the acceleration factor SENSE.

 

2. Partial fat saturation can be set to get a personalized contrast and saturation from the mDIXON TSE acquisition. This is achieved by post-processing the mDIXON TSE scan in the ImageAlgebra package where the algorithm 'Addition: (A+B)' is used; A are the water images and B are the in phase images. The degree of fat saturation can be defined interactively by the slider in the ImageAlgebra package. A new images series can be generated and the SmartLine post-processing step can be added to the ExamCard for future reuse.

Related reading



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ExamCard
Ingenia 3.0T
Release 5
Ankle, dS FootAnkle coil, dStream, Foot, mDIXON, mDIXON TSE, Musculoskeletal
 

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