X-ray And Near-infrared Spectroscopy In The Diagnosis Of Cervical Vertigo

Objective:Using cervical vertebrae exercise load test to induce cervical vertigo. Observing the induced symptoms and the change of brain blood dynamically, with the new technology --NIRS(near infrared spectroscopy)at the same time. Synchronically ,monitoring the brain blood supplying of the Vertebra- Basilar Artery and cervical artery of the cervical vertigo patient, and to research the new diagnosing means of cervical vertigo through radiologic features ,the NIRS's value and induced symptomMethods: Cervical randomly selected 30 patients with vertigo for test:1 Measure and record the monitors'radiologic features in detail.2 NIRS monitoring:2.1 Let the patient sit up with the neck in a natural position. Sources will launch two probes were fixed in the subjects after the occipital pillow outside eminence around the 2 cm, and one probe on middle of the forehead.2.2 Put the NIRS data as the criteria when the patient's cervical vertebrae are in a neutral position.2.3 Lead to cervical monitor was carried out its best to achieve 3 groups'tests. Each group has the greatest degree of forwards and back cervical movement 30 times (Freq: 1 time / s). Observing and dynamically monitor and record any symptoms induced by NIRS and the curve.2.4 Lead to cervical monitor was carried out its best to achieve 2 groups'tests. Each group has the greatest degree of levogyration and dextrogyration cervical movement 30 times (Freq: 1 time / s). Observing and dynamically monitor and record any symptoms induced by NIRS and the curve.2.5 Lead to monitors continued to maintain the largest cervical flexion,extension posture of the two minutes, Observing and dynamically monitor and record any symptoms induced by NIRS and the curve.Results:1. The group of 30 patients, 10 males and 20 females, accounting for 33.3% and 67.7%, male : Female 1:3.2. Main performance of radiologic features are cervical spine instability and narrow disc space, accounting for 86.7% and 76.7%, followed by ossification of posterior longitudinal ligament(OPLL) for 70%3. On the functional position radiographs, the horizontal displacement between C2/3,C3/4,C4/5,C5/6 and angular displacement between C34,C4/5,C5/6 ,especially C4/5 ,are markedly increased and significantly different from segments of other cervical vertebrae.4. The angular displacement in full extension is significantly different from it in full flexion,and the former greater than the latter.5. To compare with patients low the 55, cervical activity is significantly reduced over the age 55.6. Cervical vertebrae exercise load test can induce some symptoms. Most of these are vertigo (100%), followed by pain of head and neck (86.7%).7. the most painful phase of cervical vertebrae exercise load test is the largest cervical flexion. 43.3% patients do not tolerate it. 8. Patients with ligamentum nuchae ossification or not are significantly different from the degree of induced symptoms. And lighter symptoms appear from ligamentum nuchae ossification.9.The degree of induced symptoms are not correlated to the change of NIRS's value.Conclusions:1. Cervical spine instability and narrow disc space are significant to diagnose cervical vertigo. The degenerative change of C4/5 plays the important role in the cervical spine instability.2. The cervical extension posture is easier to induce the cervical vertigo than other poses, and it is the good information to diagnose the cervical vertigo.3. For cervical vertigo patients, the occurrence of ligamentum nuchae ossification is negative relevant to the extent of cervical vertigo.4. The total change of NIRS is uncorrelated to the radiologic features and induced symptoms, but the NIRS's value can significant change in the phase of arising induced symptoms. It is a hint cervical vertebrae exercise load test is benefit to the diagnoses of cervical vertigo.4.The degree of induced symptoms are not correlated to the brain blood, it may be related to the degeneration of cervical spin.