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3.0T Routine shoulder - 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 shoulder with small FOV and large matrix. The 4-channel SENSE Shoulder coil was used. Each protocol has a scan time of approximately five minutes or less.

ExamCard overview

Scan 1Survey
Scan 2Axial PD FS
Scan 3Coronal PD FS
Scan 4Coronal T2
Scan 5Coronal T1
Scan 6Sagittal PD FS
Scan 7Sagittal T2

 

 

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

 

Axial, coronal and sagittal PD FS: these proton density weighted, fat suppressed protocols use SPAIR, which gives a reliable off isocentered fat suppression, balanced with a TI to give a slight differentiation between muscle and fat tissues. These protocols also make use of an asymmetric profile order to minimize blurring effects while allowing a 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.

 

Coronal T1: this T1-weighted protocol also uses an asymmetric profile order to minimize the potential of TSE blurring. As a result of not using fat suppression the signal of this sequence permits a smaller matrix.

 

Coronal and sagittal T2: these sequences are acquired to verify potential signals within the ligaments as truly fluid, as the PD sequences are susceptible to 'Magic Angle' effects that can mimic fluid in the ligaments.

ExamCard images

Survey 3 orthogonal planes
Survey
3 orthogonal planes
Axial PD FS With SENSE and CLEAR<br>
FOV 90 mm<br>
Sl Thk 3.0/0.3<br>
Acquired matrix 0.28f x 0.37p<br>
Scan time 4:57 min.Coronal PD FS With SPAIR<br>
FOV 90 mm<br>
Sl Thk 3.0/0.3<br>
Acquired matrix 0.28f x 0.37p<br>
Scan time 5:18 min.
Axial PD FS
Coronal PD FS
With SENSE and CLEAR
FOV 90 mm
Sl Thk 3.0/0.3
Acquired matrix 0.28f x 0.37p
Scan time 4:57 min.
With SPAIR
FOV 90 mm
Sl Thk 3.0/0.3
Acquired matrix 0.28f x 0.37p
Scan time 5:18 min.
Coronal T1 FOV 90 mm<br>
Sl Thk 3.0/0.3<br>
Acquired matrix 0.28f x 0.39p<br>
Scan time 4:22 minCoronal T2 With CLEAR<br>
FOV 90 mm<br>
Sl Thk 3.0/0.3<br>
Acquired matrix 0.27f x 0.37p<br>
Scan time 4:59 min
Coronal T1
Coronal T2
FOV 90 mm
Sl Thk 3.0/0.3
Acquired matrix 0.28f x 0.39p
Scan time 4:22 min
With CLEAR
FOV 90 mm
Sl Thk 3.0/0.3
Acquired matrix 0.27f x 0.37p
Scan time 4:59 min
Sagittal PD FS With SPAIR<br>
FOV 90 mm<br>
Sl Thk 3.0/0.3<br>
Acquired matrix 0.28f x 0.38p<br>
Scan time 5:28 min.Sagittal T2 With CLEAR<br>
FOV 90 mm<br>
Sl Thk 3.0/0.3<br>
Acquired matrix 0.27f x 0.36p<br>
Scan time 5:16 min
Sagittal PD FS
Sagittal T2
With SPAIR
FOV 90 mm
Sl Thk 3.0/0.3
Acquired matrix 0.28f x 0.38p
Scan time 5:28 min.
With CLEAR
FOV 90 mm
Sl Thk 3.0/0.3
Acquired matrix 0.27f x 0.36p
Scan time 5:16 min

Patient preparation

Patients are positioned head first, supine, with the shoulder positioned as securely as possible into the coil cup. A restraining band may be wrapped across the patient's torso to help minimize breathing artifacts.

 

 

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Jun 15, 2008

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

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