CT Arthrogram Shoulder: R/O Rotator Cuff or Labral Tear
To analyze a rotator cuff tear, an MRI would usually performed, unless it is contraindicated, such as by a pacemaker. The rotator cuff cannot be evaluated on a non-contrast CT nor on a intravenous contrast CT. A CT arthrogram should be specified in order to rule out a rotator cuff tear.
Above: the needle for the injection is visible in the shoulder in this CT image.
Below: CT arthrograms showing contrast (white) in the tear in the rotator cuff.