Artrografia RM (Risonanza Magnetica) della spalla: anatomia normale

Artrografia RM (Risonanza Magnetica) della spalla: anatomia normale

Artrografia RM (Risonanza Magnetica) della spalla: anatomia normale


Questo modulo anatomico di e-Anatomy è dedicato all’anatomia dell’articolazione della spalla e alla cuffia dei rotatori in un’artrografia RM.  

Questo artrogramma RM della spalla è stato eseguito su un paziente di sesso maschile con una GE Signa Pioneer 3T MRI dal Dr. Corey Chakarun di Shin Imaging, California. L’esame non è normale a causa di una lesione cronica al complesso labbrolegamentoso glenoideo anteroinferiore.  

È stata realizzata un’iniezione di una soluzione da 12 ml di gadolinio (diluizione 1:200) nell’articolazione della spalla sotto controllo fluoroscopico, con un approccio anteriore (paziente in posizione supina con la spalla in lieve rotazione esterna).

Successivamente, la RM è stata eseguita con la spalla in posizione neutra (ad eccezione dell’ABER), con 5 diverse sequenze usate comunemente per l’artrografia RM dell’articolazione della spalla: 

  • Assiale in ponderazione T1 con saturazione del grasso
MR Arthrography of the shoulder in Axial T1 FS: Normal anatomy of the glenohumeral joint and of the rotator cuff. This MRI shows the labrum, the tendons of the rotator cuff muscles, the glenohumeral ligaments, the articular capsule and the subacromial-subdeltoid bursa
Axial T1 FS image shows the normal anatomy of the glenohumeral joint and the rotator cuff on a MR (Magnetic Resonance) arthrography of the shoulder. On this MRI the labrum, the tendons of the rotator cuff muscles, the glenohumeral ligaments, the articular capsule and the subacromial-subdeltoid bursa can be distinguished.
  • Coronale obliqua in ponderazione T1 con saturazione del grasso
Shoulder MR arthrogram on coronal F1 FS showing the anatomy of the normal glenohumeral joint and of the rotator cuff
This oblique coronal T1-weighted fat saturation image shows the anatomy of the normal glenohumeral joint and of the rotator cuff
  • Coronale obliqua in ponderazione DP con saturazione del grasso
Shoulder MR Arthogram in coronal PD FS showing the rotator cuff, the musculotendinous cuff, the supraspinatus tendon, the infraspinatus muscle, the subacromial bursa and the subdeltoid bursa
This oblique coronal PD-weighted fat saturation image shows the rotator cuff, the musculotendinous cuff, the supraspinatus tendon, the infraspinatus muscle, the subacromial bursa and the subdeltoid bursa
  • Fast spin echo in ponderazione T1 sul piano sagittale obliquo  
Shoulder MR arthrogram on sagittal T1 showing the articular surface of glenoid, the glenoid labrum, the bicipital-labrum complex and the glenohumeral ligaments
This oblique sagittal T1-weighted FSE image shows the articular surface of glenoid, the glenoid labrum, the bicipital-labrum complex and the lenohumeral ligaments
  • In ponderazione T1 con saturazione del grasso in adduzione e rotazione esterna
Shoulder MR arthrogram in the ABER position-T1 FS: the glenohumeral joint, the shoulder joint, the supraspinatus tendon, the glenoid labrum can be distinguished
This T1-weighted fat saturation was performed in abduction and external rotation (the ABER position). It shows the glenohumeral joint, the shoulder joint, the supraspinatus tendon and the glenoid labrum
MR Arthrography of the shoulder in Axial T1 FS: Normal anatomy of the glenohumeral joint and of the rotator cuff. This MRI shows the labrum, the tendons of the rotator cuff muscles, the glenohumeral ligaments, the articular capsule and the subacromial-subdeltoid bursa
Figura 1 - Axial T1 FS image shows the normal anatomy of the glenohumeral joint and the rotator cuff on a MR (Magnetic Resonance) arthrography of the shoulder. On this MRI the labrum, the tendons of the rotator cuff muscles, the glenohumeral ligaments, the articular capsule and the subacromial-subdeltoid bursa can be distinguished.
Shoulder MR arthrogram on coronal F1 FS showing the anatomy of the normal glenohumeral joint and of the rotator cuff
Figura 2 - This oblique coronal T1-weighted fat saturation image shows the anatomy of the normal glenohumeral joint and of the rotator cuff
Shoulder MR Arthogram in coronal PD FS showing the rotator cuff, the musculotendinous cuff, the supraspinatus tendon, the infraspinatus muscle, the subacromial bursa and the subdeltoid bursa
Figura 3 - This oblique coronal PD-weighted fat saturation image shows the rotator cuff, the musculotendinous cuff, the supraspinatus tendon, the infraspinatus muscle, the subacromial bursa and the subdeltoid bursa
Shoulder MR arthrogram on sagittal T1 showing the articular surface of glenoid, the glenoid labrum, the bicipital-labrum complex and the glenohumeral ligaments
Figura 4 - This oblique sagittal T1-weighted FSE image shows the articular surface of glenoid, the glenoid labrum, the bicipital-labrum complex and the lenohumeral ligaments
Shoulder MR arthrogram in the ABER position-T1 FS: the glenohumeral joint, the shoulder joint, the supraspinatus tendon, the glenoid labrum can be distinguished
Figura 5 - This T1-weighted fat saturation was performed in abduction and external rotation (the ABER position). It shows the glenohumeral joint, the shoulder joint, the supraspinatus tendon and the glenoid labrum
  • Normal Shoulder MRI and MR Arthrography: Anatomy and Technique. Seminars in musculoskeletal radiology.Llopis, Eva & Montesinos, Pau & Guedez, M & Aguilella, Luis & Cerezal, Luis. (2015). 19. 212-30. 10.1055/s-0035-1549316
  • The anterior glenohumeral joint capsule: macroscopic and MRI anatomy of the fasciculus obliquus or so-called ligamentum glenohumerale spirale - Griffin N, Charles-Edwards G, Grant LA. Magnetic resonance cholangiopancreatography: the ABC of MRCP. Insights Imaging. 2012;3(1):11–21. doi:10.1007/s13244-011-0129-9
  • Transverse Thickening Along the Articular Surface of the Rotator Cuff Consistent With the Rotator Cable: Identification With MR Arthrography and Relevance in Rotator Cuff Evaluation. Kenneth Sheah, Miriam A. Bredella, Jon J. P. Warner, Elkan F. Halpern, and William E. Palmer American Journal of Roentgenology 2009 193:3, 679-686
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