[3D-MR myelography in diagnosis of lumbar spinal nerve root compression syndromes. Comparative study with conventional myelography].
65 patients with nerve root compression syndrome were examined using a new type of MR-technique, which is comparable to the conventional X-ray myelography. The results of the prospective case study were compared with previous clinical experiences (1). For the examinations a 1.0T whole body MR-system (Siemens Magnetom Impact) was used. A strong T2*-weighted 3D-FISP sequence (TR = 73 ms, TE = 21 ms, alpha = 7 degrees) was applied in sagittal orientation using a circularly polarized oval spine coil. To obtain fat suppression a frequency selective 1-3-3-1 prepulse was applied prior to the imaging sequence. The acquired 3D-data set was evaluated using a Maximum Intensity Projection (MIP) program. Our results confirmed earlier experiences which showed that the diagnostic sensitivity of 3D-MR myelography (3D-MRM) is comparable to that of conventional X-ray myelography. In cases of severe spinal canal stenosis and spondylolisthesises, and in cases of postoperative scar tissue with nerve root compressions, the sensitivity of the 3D-MRM is higher as compared to that of conventional X-ray myelography.
Eberhardt
K E
KE
Neuroradiologische Abteilung, Universität Nürnberg-Erlangen.
Hollenbach
H P
HP
Huk
W J
WJ
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002921:Cicatrix / Q000175:diagnosis; D005260:Female; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000295:instrumentation*; D007405:Intervertebral Disc Displacement / Q000175:diagnosis / Q000601:surgery; D008159:Lumbar Vertebrae / Q000473:pathology / Q000601:surgery; D008279:Magnetic Resonance Imaging / Q000295:instrumentation*; D008297:Male; D008875:Middle Aged; D009192:Myelography / Q000295:instrumentation*; D009408:Nerve Compression Syndromes / Q000175:diagnosis* / Q000601:surgery; D009442:Neurilemmoma / Q000175:diagnosis / Q000601:surgery; D010524:Peripheral Nervous System Neoplasms / Q000175:diagnosis / Q000601:surgery; D011183:Postoperative Complications / Q000175:diagnosis; D011446:Prospective Studies; D013126:Spinal Nerve Roots / Q000473:pathology / Q000601:surgery; D013130:Spinal Stenosis / Q000175:diagnosis / Q000601:surgery; D013168:Spondylolisthesis / Q000175:diagnosis / Q000601:surgery
3D-MR Myelographie (3D-MRM) zur Diagnose von lumbalen Nervenwurzelkompressionssyndromen. Vergleichsstudie zu konventioneller Myelographie.