Magnetic Susceptibility in the Vertebral Column
| Autor: | J. Giehl, Fritz Schick, T. Nagele, Otto Lutz, K. Pfeffer |
|---|---|
| Rok vydání: | 1994 |
| Předmět: |
Adult
Male Adolescent Nuclear magnetic resonance Healthy volunteers medicine Humans Intervertebral Disc medicine.diagnostic_test Chemistry General Engineering Healthy subjects Magnetic resonance imaging Anatomy Middle Aged Magnetic Resonance Imaging Magnetic susceptibility Spine Models Structural Intervertebral disk medicine.anatomical_structure Female Spinal Diseases Bone marrow Cadaveric spasm Vertebral column |
| Zdroj: | Journal of Magnetic Resonance, Series B. 103:39-52 |
| ISSN: | 1064-1866 |
| DOI: | 10.1006/jmrb.1994.1005 |
| Popis: | A magnetic resonance method is described which provides good-quality field-mapping images of the spine, although the in vivo signals from red bone marrow of the vertebral bodies exhibit similar fractions of lipid and water protons with their chemical-shift difference of 3.4 ppm. The susceptibilities of bone marrow and intervertebral disks were examined in 20 cadaveric human spines, 9 healthy volunteers, and 9 patients with degenerative disk alterations. The influence of geometrical properties was studied in cylindrical spine phantoms of different size and contents with different susceptibility. The measurements reveal interindividual differences of the susceptibility of the intervertebral disks in healthy subjects. Three out of nine degenerated disks with low signal in T2-weighted spin-echo images showed irregularities of the field distribution within the nucleus pulposus. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|