Dorenbeck, Ulrich and Schreyer, A. G. and Grunwald, I. Q. and Held, P. and Feuerbach, S. and Seitz, J. (2004) Degenerative diseases of the lumbar spine - Comparison of the multiecho data image combination sequence with magnetization transfer saturation pulse versus lumbar myelography/postmyelographic computed tomography. ACTA RADIOLOGICA, 45 (8). pp. 866-873. ISSN 0284-1851,
Full text not available from this repository. (Request a copy)Abstract
Purpose: To compare a T2* weighted 2D spoiled gradient echo multiecho sequence (MEDIC) with magnetization transfer saturation pulse versus lumbar myelography and postmyelographic computed tomography (pCT). Material and Methods: 84 disk levels in 27 patients were examined. The vertebral bodies, intervertebral disks, neural foramina, cauda equina, ligamentum flavum, and narrowing of the spinal canal were investigated using an evaluation scale. In addition, the pCT and the MEDIC sequence were evaluated for assessing the narrowing of the neural foramina in a phantom study using a cadaver preparation of the lumbar spine. Results: A total of 28 disk herniations, 11 cases of osteophytes narrowing the spinal canal or the neural foramina, and 7 spinal canal stenoses were detected. The pCT was significantly better in visualizing the cauda equina. The MEDIC sequence was significantly superior in visualizing the extension of the ligamentum flavurn. No statistical differences between either image modality were found concerning assessment of the narrowing of the neural foramina and the spinal canal, nor regarding evaluation of the vertebral disk and the vertebral body. Measurements of the phantom study showed that the MEDIC sequence did not overestimate narrowing of the neural foramina. Conclusions: The T2* MEDIC sequence has proved to be as accurate as pCT in evaluating osteophytes and narrowing of the neural foramina. In doubtful standard magnetic resonance imaging findings, this means that an additional axial T2* MEDIC sequence may be of value in reaching the same accuracy as pCT.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | GRADIENT-ECHO MR; CERVICAL NEURAL FORAMINA; SURFACE COIL MR; SUSCEPTIBILITY ARTIFACTS; ROOT COMPRESSION; CT-MYELOGRAPHY; DISK DISEASE; CONTRAST; DIAGNOSIS; lumbar spine; magnetic resonance imaging; magnetization transfer saturation pulse; 2D spoiled gradient echo multiecho |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Röntgendiagnostik Medicine > Zentren des Universitätsklinikums Regensburg > Zentrum für Hirntumore (ZHT) |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 21 Jun 2021 09:34 |
| Last Modified: | 21 Jun 2021 09:34 |
| URI: | https://pred.uni-regensburg.de/id/eprint/36874 |
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