Introduction & Background: From 1381 10 1384 " Iranian calendar" using MRI 0/5 and 1.5 steals we have done SHOULDER MR Arthrograms with diluted gadolinium "1/200 dosage in 9cc of a solution". In cases of non diluted GD we have done also CT Ar-throgram "air-dye double contrast", because GD is heavier compared with iodine, "medallion cross board" dilated GD is used without air. Patients & Methods: We used T1, T2, and fat saturation pulses. T1 was a special protocol in coronal and axial views; 1/200 dilated GD is used and has been injected into joint space under CT guidance. Results: Thirty-two patients attended our investigation, 4 women and 28 men. Two cases of R.C. tearing, 2 cases of capsular tearing, 4 cases of labial detach-mints, 2 cases of small globoid, 2 cases of impinge-mint syndrome with no R.C. tearing and 20 cases were normal. We have done 45 patients with double contrast CT pneumogrpahy parallel to MR “Arturo-grams Conclusion: The impression is MR-Arteriogram in T1 looks like a joint with effusion in T2 images. Ortho-medic vision depends on his clinical findings and his interest for imaging. If you use undiluted GD sig-nevoid joint looks like pneumoarthrogram in CT scan "signal voided". And we have found MRI is superior to CT in R.C. tearing but CT is better than MRI in labial lesion. MR- Arteriogram results are best because we have studied all anatomy by conventional MRI beside orthography .