Imaging studyAdvantagesDisadvantages
Arthrography (used with MRI or CT to visualize the joint capsule and glenoid labrum)39 CT arthrography shows biceps tendon subluxations, ruptures, dislocations, and SLAP lesions14
MRI arthrography is preferable for diagnosing biceps lesions and SLAP lesions14 because the agreement between MRI and arthroscopy for biceps lesions is only 37 percent and 60 percent for rotator cuff lesions
Invasive
Filling of the biceps tendon sheath is unreliable40
Sharp images of the tendon may be lost41
Ionizing radiation
Bicipital groove view radiography33 Shows the width and medial wall angle of the bicipital groove, spurs in the groove, and supertubercular bone spur or ridge
Inexpensive12
Does not show possible intra-articular disorders of the labrum (soft tissue injuries)32
MRIExcellent evaluation of the superior labral complex and biceps tendon39 Partial tears of the biceps tendon are more difficult to detect than complete ruptures
Expensive5
Poorly correlated with arthroscopy14
Radiography (anteroposterior views of the shoulder and acromioclavicular joint, lateral axilla, outlet view, and ALVIS view)10 Rules out shoulder fracture and strains or dislocations of the acromioclavicular joint and arthritis of the glenohumeral and acromioclavicular joint
Inexpensive
Cystic changes in the lesser tuberosity are a sign of biceps tendinosis or upper subscapularis tear14
In impingement syndrome, a subacromial spur is usually visible on the outlet and ALVIS views
Shows only bony origins of impingement syndrome and not soft tissue
UltrasonographyRelatively inexpensive
May be used for patients with metallic implants
Dynamic
Widely available
No ionizing radiation
Offers better spatial resolution than MRI and may be used for local anesthetic or corticosteroid injections into the biceps tendon sheath14,3339
An overall sensitivity of 49 percent and a specificity of 97 percent
Requires an experienced operator
High frequency array transducer
Blind areas
Difficult to scan patients who are obese14,3339