Range--a technique for lumbar computerized tomography

Range is a simple, technically reproducible, fast, comfortable and diagnostically reliable method for high resolution CT of the spine. The 5 mm slices at 3 mm intervals provide parallel overlapping slices which display the pathology in more than one slice, providing the abnormality is not seen only in the first or last cut at the L5-S1 or L4-L5 interspace, thus decreasing false positives due to artifact of normal anatomic structures.