J Korean Radiol Soc.
1984 Dec;20(4):779-788. 10.3348/jkrs.1984.20.4.779.
Diagnostic value of multiplanar reconstruction in CT recognition of lumbar spinal disorders
- KMID: 2462968
- DOI: http://doi.org/10.3348/jkrs.1984.20.4.779
Abstract
- The CT is useful in evaluation of bony structures and adjacent soft tissues of the lumbar spine. Recently, themultiplanar recontruction of lumbar spine CT of significant value for the anatomical localization and for themyelographic and surgical correlation. We observed 177 Cases of lumbar spine CT, who complains of spinal symptom,during the period from Dec. 1982 to Aug. 1984. The results were as follows; 1. The sex distribution of cases were133 males and 44 females. The CT diagnosis showed 152 cases of herniated lumbar disc, 15 cases of degenerativedisease, 5 cases of spine tbc., 3 cases of spine trauma and 2 cases of meningocele. 2. CT findings of herniateddisc were as follows; focal protrusion of posterior disc margin and obliteration of anterior epidural fat in allcase, indentation on dural sac in 92 cases(60.5%), soft tissue mass in epidural fat in 85 cases(55.9%),compression or displacement of nerve root sheath in 22 cases (14.4%). 3. Sites of herniated lumbar disc were aL4-L5 level in 100 cases (59.1%) and at L5-S1 level in 65 cases (38.4%). Location of it were central type in 70cases (41.4%), left-central type in 46 cases (27.2%), right-central type in 44 cases (26.0%) and lateral type in9 cases(5.1%). 4. The sagittal reconstruction images were helpful in evaluation genural foramina, size of discbluge into spinal canal, expecially at L5-S1, and patients with spondlylolisthesis. The coronal reconstructionimages were the least informative, although they contributed to the evaluation of lumbar nerve roots of course,the axial CT scans were the most sensitive and specific.
