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3.0T Routine knee - PAMF, USA

ExamCard
Goumas, Chris, M.D. Palo Alto Medical Foundation USA

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ExamCard purpose

This release 2.1.3 ExamCard was created by the Palo Alto Medical Foundation for routine imaging of the knee using small FOV and high matrix. The 8-channel SENSE Knee coil is used. Each protocol has a scan time of approximately five minutes or less.

ExamCard overview

Scan 1Survey
Scan 2Sagittal PD FS
Scan 3Sagittal PD
Scan 4Coronal PD FS
Scan 5Coronal T1
Scan 6Axial PD FS

 

 

Survey: images are acquired in three orthogonal planes. The knee is positioned as close to the isocenter as possible.

 

Sagittal, coronal and axial PD FS: these proton density weighted fat suppressed protocols use SPAIR, balanced with a TI to give a slight differentiation between muscle and fat tissues. They also make use of an asymmetric profile order to minimize blurring effects, while allowing a shorter TE value to be used for increased signal. As a result of these signal-improving benefits the matrix and FOV of these protocols can be minimized.

 

Sagittal and axial PD: these proton density weighted non-fat suppressed sequences also use an asymmetric profile order to minimize potential blurring and because of the higher signal obtained than their fat suppressed counter parts, a higher resolution can be produced from these protocols.

 

Coronal T1-weighted: this sequence also uses an asymmetric profile order to minimize potential blurring and because of the higher signal than it's fat suppressed counter part, this is a higher resolution protocol.

ExamCard images

Survey 3 orthogonal planes
Survey
3 orthogonal planes
Sagittal PD FS With SPAIR and SENSE<br>
FOV 120 mm<br>
Sl Thk 2.5/0.25<br>
Acquired matrix 0.25f x 0.34p <br>
Scan time 4:57 min.Sagittal PD With SENSE<br>
FOV 120 mm<br>
Sl Thk 2.5/0.25<br>
Acquired matrix 0.20f x 0.28p <br>
Scan time 5:36 min.
Sagittal PD FS
Sagittal PD
With SPAIR and SENSE
FOV 120 mm
Sl Thk 2.5/0.25
Acquired matrix 0.25f x 0.34p
Scan time 4:57 min.
With SENSE
FOV 120 mm
Sl Thk 2.5/0.25
Acquired matrix 0.20f x 0.28p
Scan time 5:36 min.
Coronal PD FS With SPAIR and SENSE<br>
FOV 120 mm<br>
Sl Thk 2.5/0.25<br>
Acquired matrix 0.25f x 0.36p <br>
Scan time 3:58 min.Coronal T1 With SENSE<br>
FOV 120 mm<br>
Sl Thk 2.5/0.25<br>
Acquired matrix  0.20f x 0.33p<br>
Scan time 5:14 min.
Coronal PD FS
Coronal T1
With SPAIR and SENSE
FOV 120 mm
Sl Thk 2.5/0.25
Acquired matrix 0.25f x 0.36p
Scan time 3:58 min.
With SENSE
FOV 120 mm
Sl Thk 2.5/0.25
Acquired matrix 0.20f x 0.33p
Scan time 5:14 min.
Axial PD FS With SPAIR and SENSE<br>
FOV 120 mm<br>
Sl Thk 2.5/0.25<br>
Acquired matrix 0.23f x 0.34p <br>
Scan time 4:38 min.
Axial PD FS
With SPAIR and SENSE
FOV 120 mm
Sl Thk 2.5/0.25
Acquired matrix 0.23f x 0.34p
Scan time 4:38 min.

Patient preparation

Patients are positioned feet first, supine, with the knee positioned in the isocenter as much as possible. The unaffected leg is supported with padding for comfort along side the 8-channel SENSE Knee coil.

 

 

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Added:
Jun 15, 2008

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ExamCard
Achieva 3.0T X-series
3T, Knee, Musculoskeletal
 

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