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| Value of 64 MSCT with reconstruction in diagnosing lumbar spondyloschisis |
| HE Jie, WEI Pei-jian, LI Shi-ling |
| Department of CT/MRI, the Third Hospital of Hebei Medical University, Shijiazhuang 050051, China |
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Abstract Objective: To discuss the method of scanning and image reconstruction with MSCT in lumbar spondyloschisis. Methods: Twenty-six patients were scanned with CT for the intervertebral disc. The scan range were enlarged for L4~5, L5~S1 interverteral disc and including vertebral arch. Spiral scan were performed in 10 cases. The images were reconstructed with multiplanar reformation(MPR) and maximum intensity projection(MIP) along the direction of vertebral arch. Results: Axial scanning including vertebral arch can show spondyloschisis and other signs. These contained widened or stenosis of the spinal canal, stenosis of the lateral recess, the double margin sign, deformity of the intervertebral disc, denegeration of the joint facet and thickening of the ligamentum flavum. Scotty dog sign were showed in images reconstructed along the direction of vertebral arch. Spondylolysis were showed in sagittal images. Conclusion: The scan range were increased for the fourth lumbar to first sacroiliac interverteral disc and contained vertebral arch for conventional intervertebral disc. The spiral scanning were performed for lumbar spondyloschisis and with MPR along the direction of vertebral arch. The method is simple and useful for the patients suffered low-back pain.
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Received: 12 March 2007
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2007, Vol. 18 
