MR imaging of rotator cuff tendon tears: comparison of T2*-weighted gradient-echo and conventional dual-echo sequences

AJR. American Journal of Roentgenology
M ParsaJ F Orwin

Abstract

Although MR imaging evaluation of the rotator cuff is usually done with proton density- and T2-weighted spin-echo techniques, interest also exists in T2*-weighted gradient-recalled echo techniques. The shorter scan times of T2*-weighted sequences can be used to increase the number of signal averages and thus improve the signal-to-noise ratio. Our purpose in this study was to compare the sensitivity and specificity of oblique coronal T2*-weighted MR image interpretations with conventional dual-echo T2-weighted MR image interpretations when diagnosing rotator cuff tears. Forty-seven consecutive patients who underwent both MR imaging and shoulder arthroscopy were included in this study. The MR examination included both a 7 min 20 sec acquisition time proton density- and T2-weighted oblique coronal sequence and a 7 min 5 sec T2*-weighted oblique coronal sequence. The oblique coronal dual-echo T2-weighted images were evaluated by two of the authors independently, who were unaware of the arthroscopic findings. Each of the two observers graded each cuff as being intact, having a partial-thickness tear, or having a full-thickness tear. After a 3-week interval, each of the two observers then interpreted the T2*-weighted oblique coronal ...Continue Reading

Citations

Feb 11, 2009·Sports Medicine and Arthroscopy Review·Patrick J Murray, Benjamin S Shaffer
Mar 31, 2011·Journal of Magnetic Resonance Imaging : JMRI·Richard Kijowski, Garry E Gold
Apr 5, 2001·Clinical Radiology·R S Campbell, A J Grainger
Sep 1, 2015·Orthopaedics & Traumatology, Surgery & Research : OTSR·H HondaT Kubo
Jul 18, 2002·Radiologic Clinics of North America·Russell C Fritz
Oct 1, 2010·Topics in Magnetic Resonance Imaging : TMRI·Richard Kijowski
Jan 19, 2002·The American Journal of Sports Medicine·Anthony MiniaciEdna J Becker

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