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Comparison of High-Field-Strength Versus Low-Field-Strength MRI of the Shoulder

¹ All authors: Department of Radiology, Neuroimaging Institute, 27 E Hibiscus Blvd., Melbourne, FL 32901.

View larger version (140K): [in a new window]   Fig. 1A. —47-year-old man with shoulder pain. T1-weighted axial 0.2-T image (TR/TE, 685/12) shows no abnormality in posterior labrum (arrow).

View larger version (138K): [in a new window]   Fig. 1B. —47-year-old man with shoulder pain. STIR axial 0.2-T image (2,500/22; inversion time, 75 msec) shows no definite abnormality in posterior labrum. Subtle area of increased signal (arrow) may be visible in posterior labrum.

View larger version (119K): [in a new window]   Fig. 1C. —47-year-old man with shoulder pain. T2-weighted axial 1.5-T image (2,500/68) shows abnormal signal and irregularity in posterior labrum confirmed at arthroscopy to be posterior labral tear (arrow).

View larger version (146K): [in a new window]   Fig. 2A. —56-year-old man with shoulder pain. T2-weighted coronal 0.2-T image (TR/TE, 3,350/94.5) shows no abnormality in superior labrum (long arrow) and suspected partial-thickness supraspinatus tear (short arrow).

View larger version (162K): [in a new window]   Fig. 2B. —56-year-old man with shoulder pain. STIR coronal 0.2-T image (2,500/22; inversion time, 75 msec) shows no abnormality in superior labrum (long arrow) and depicts partial-thickness supraspinatus tendon tear (short arrow) in articular surface.

View larger version (160K): [in a new window]   Fig. 2C. —56-year-old man with shoulder pain. T2-weighted coronal 1.5-T image (2,500/68) shows superior labral anteroposterior tear (long arrow) and partial-thickness supraspinatus tendon tear in articular surface (short arrow), that were confirmed at arthroscopy.

View larger version (150K): [in a new window]   Fig. 3A. —38-year-old woman with shoulder pain. T2-weighted coronal 0.2-T image (TR/TE, 3,350/94.5) shows suspected abnormality in superior labrum (arrow). STIR coronal imaging was attempted, but patient could not remain motionless long enough.

View larger version (167K): [in a new window]   Fig. 3B. —38-year-old woman with shoulder pain. T2-weighted coronal 1.5-T image (2,500/68) shows definite superior labral anteroposterior tear (arrow), that was confirmed at arthroscopy.

View larger version (165K): [in a new window]   Fig. 4A. —53-year-old man with shoulder pain. STIR coronal (A) and sagittal (B) 0.2-T images (TR/TE, 2,500/22; inversion time, 75 msec) show abnormal signal (arrow) in distal supraspinatus tendon but no full-thickness tear.

View larger version (155K): [in a new window]   Fig. 4B. —53-year-old man with shoulder pain. STIR coronal (A) and sagittal (B) 0.2-T images (TR/TE, 2,500/22; inversion time, 75 msec) show abnormal signal (arrow) in distal supraspinatus tendon but no full-thickness tear.

View larger version (149K): [in a new window]   Fig. 4C. —53-year-old man with shoulder pain. T2-weighted coronal 1.5-T image (2,500/68) shows small full-thickness supraspinatus tendon tear (arrow), that was confirmed at arthroscopy.

View larger version (164K): [in a new window]   Fig. 5A. —68-year-old man with shoulder pain. T2-weighted coronal 0.2-T image (TR/TE, 3,350/94.5) shows attenuation of supraspinatus tendon (arrow) but no definite full-thickness tear.

View larger version (169K): [in a new window]   Fig. 5B. —68-year-old man with shoulder pain. T2-weighted coronal (B) and sagittal (C) images show full-thickness supraspinatus tendon tears, one with retraction (arrow, B) and the other (arrow, C) confirmed at arthroscopy.

View larger version (114K): [in a new window]   Fig. 5C. —68-year-old man with shoulder pain. T2-weighted coronal (B) and sagittal (C) images show full-thickness supraspinatus tendon tears, one with retraction (arrow, B) and the other (arrow, C) confirmed at arthroscopy.

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