Three-dimensional Isotropic Shoulder MR Arthrography: Comparison with Two-dimensional MR Arthrography for the Diagnosis of Labral Lesions at 3.0 T

Abstract

Isotropic 3D shoulder MR arthrography combined with a multiplanar reconstruction technique can help in the diagnosis of shoulder labral lesions as does 2D MR arthrography, but with shorter imaging times.

A meta-analysis of the diagnostic test accuracy of MRA and MRI for the detection of glenoid labral injury

“…Nonetheless, more recent studies have started using much higher field strength machines to image the glenoid labrum. Four studies assessed MRA using a 3.0 T machine [16,17,28,29], while two MRI studies were performed using 3.0 T procedures [29,30]. When these papers were specifically reviewed, the MRI findings indicated greater diagnostic test accuracy for the higher field strength imaging compared to our meta-analysis results.…”

Diagnostic performance of CT-arthrography and 1.5T MR-arthrography for the assessment of glenohumeral joint cartilage: a comparative study with arthroscopic correlation

“…Despite recent achievements in dose reduction in musculoskeletal CT, CTA exposes patient to ionizing radiation, so efforts should focus on MRA [33][34][35]. 3-T MRA with the use of newly developed gradient echo or spin echo based isotropic 3D sequences could be of interest, as well as more specific imaging techniques such as the balanced steady-state free precession (SSFP) techniques, or the use of traction imaging [6,8,[36][37][38][39].…”

L’arthro-IRM, le gold-standard actuel ?

“…Avec cette technique, les séquences pondérées T1 avec la suppression du signal de la graisse (Fat Sat) permettent d'identifier avec certitude les zones s'imprégnant du produit de contraste et de les différencier des zones liquidiennes non communicantes avec l'articulation. Ces séquences sont généralement réalisées en écho de spin malgré l'épaisseur de coupe qui reste élevée (3 mm) ou en écho-de-gradient 3D avec des coupes plus fines mais avec une moins bonne résolution dans le plan de coupe [14][15][16]. Elles offrent un bon contraste et sont peu sensibles aux artefacts.…”