A flexion and extension device for dynamic MR imaging of the neck
| Autor: | B. R. Condon, Donald M. Hadley, W. Richardson |
|---|---|
| Rok vydání: | 1992 |
| Předmět: |
medicine.diagnostic_test
business.industry Posture Dynamic mr Biomechanics Magnetic resonance imaging Joint instability General Medicine Anatomy Spinal cord Magnetic Resonance Imaging Cervical spine Neutral position Normal volunteers medicine.anatomical_structure medicine Humans Radiology Nuclear Medicine and imaging Nuclear medicine business Neck |
| Zdroj: | The British Journal of Radiology. 65:816-818 |
| ISSN: | 1748-880X 0007-1285 |
| DOI: | 10.1259/0007-1285-65-777-816 |
| Popis: | Magnetic resonance (MR) imaging of flexion and extension manoeuvres in the cervical spine has proved useful in the clinical evaluation of bone and joint instability (Hadley & Condon, 1988; Jordan & Enzmann, 1991) as well as providing a research tool into the biomechanics of the living spinal cord (Condon & Hadley, 1988). Unfortunately the image acquisition procedure is time consuming. Difficulties in repositioning are coupled with problems of patient acceptibility caused by discomfort. Images have to be acquired with the patient's neck in flexion, extension and in a neutral position. Images taken at intermediate neck positions may also be necessary for a cine loop to be constructed so that the dynamics of the interactions between the cord and lesions (e.g. osteophytes, bone movement etc) can be adequately appreciated. In order to produce an image of sufficient resolution and contrast, each position must be maintained for several minutes. Even in normal volunteers this is rarely practicable if the neck is ... |
| Databáze: | OpenAIRE |
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