Diagnostic procedure, Contrast agent-other, MR, Musculoskeletal system, Athletic injuries, Trauma
G. Lanni, L. Conti, S. Mariani, V. Calvisi, A. Barile, C. Masciocchi; L'Aquila/IT
Methods and Materials
We retrospectively reviewed and analyzed arthro-MRI exams of 23 patients (20 males and 3 females) who underwent arthro-MRI exam with a 1.5 Tesla device and arthroscopy within successive 2 months.
All patients were athletes clinically suspected of ASI,
positive to Palm-up,
O’Brien and Hawkins tests.
The shoulder was studied with dedicated coil in neutral,
intra and extrarotated position.
ABER position was used in 8 patients.
Intra-articular injection of contrast agent (Gd-DOTA) was made under fluoroscopy.
Artro-MRI protocol included proton density-weighted (PD-w) sequences with and without fat suppression acquired in sagittal,
coronal and axial planes.
MR parameters included: FOV = 16-18 cm,
matrix = 256x256 and number of excitations (NEX) = 2.
TE and TR were respectively of 13.5 and 1800 ms while slice thickness was 4.0 mm and slice gap 0.4 mm.