PROTOCOLS
A Check the clinical indication and choose the correct protocol
B Read any scanning notes to ensure correct positioning and orientation
C Perform the sequences in the order indicated - this is important to ensure a diagnosis in the event the scan is abandoned
Protocols are available for
• Rotator cuff tear /Impingement / Frozen shoulder/ routine protocol
• Recurrent dislocation / Recurrent Instability
• MR Arthrogram
• Post surgical
• Sternoclavicular joint
IMPORTANT SCANNING NOTES
• Externally rotate shoulder as much as comfortable for patient
• FSPD (fat saturated proton density) requires a TE of greater than 40ms **
• Slice thickness 3mm or better FOV 12-14cm unless otherwise stated
• Coronal images are oriented parallel to supraspinatus tendon from the axial localier (image 1 to the right) and
then to glenoid long axis (image 2)
• Sagittal images are oriented firstly to the glenoid surface (image 3) and then tilted superolateral to inferomedial perpendicular
to the supraspinatus tendon on the coronals (see image 4). NOTE Do not tilt for ?Recurrent dislocation indication
• Axial images are parallel to the short axis of the glenoid
Rotator cuff tear /Impingement / Frozen shoulder
• Axial FSPD
• Coronal FSPD
• Coronal T1
• Sagittal oblique FSPD .. tilted perpendicular to supraspinatus insertion ..see image 3
• Sagittal T1 must include lateral half of supraspinatus muscle
Recurrent dislocation / Recurrent Instability
• same as above but NO TILT of sagittal images and add....
• Axial T1 oblique ..use glenoid on sagittal images - orientate to 2-8 o'clock for left shoulder - see image 5 opposite
MR Arthrogram
• Axial FSPD
• Sagittal FSPD
• Axial FST1 oblique ..use glenoid on sagittal images - orientate to 2-8 o'clock - see image
• Coronal FSPD
• Coronal FST1
Post surgical
• Axial STIR
• Coronal STIR
• Sagittal T2
Sternoclavicular joint
• Axial FSPD
• Axial T1
• Coronal STIR
• Coronal T1
