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Non-technical (user friendly) Glossary

 

Craniocervical instability

Instability (excess movement) of the joint/s between the skull and first cervical vertebrae. 

Atlantoaxial instability

Instability (excess movement) of the joint/s between the first and second cervical vertebras.

Subaxial Instability

Instability (excess movement) in any of the cervical levels below the second cervical vertebrae up to C7.

Brain stem compression

Damage due to dynamic pressure on the brain stem (part of the nervous system where the brain communicates with the rest of the body).

Basilar Invagination

Vertical instability where the cervical spine can become impaled into the skull.

Odontoid peg

The central bony tip (peg) of C2 that passes through the top of C1, the tip of the cervical spine.

Superior Odontoid Migration

The upward movement of the Odontoid peg without fulfilling the full criteria for Basilar Invagination

Chiari/ tonsils ectopia

Decent of the hindbrain tonsils into the fossa space of the back of the skull (suboccipital). Chiari is diagnosed when tonsil decent prevents proper flow of CSF fluid and some special characteristics.

Tethered cord

Condition where the bottom of the spinal cord is stuck to the spinal canal. In EDS patients it can be “occult”.

Intracranial hypertension/hypotension

Condition where there is too much or too little pressure in the brain

Ehlers-Danlos Syndrome

Connective tissue disorder where the body´s tissues collagen is “softer” than normal, hypermobile EDS being the most common type

Hypermobile Spectrum Disorder

Connective tissue disorder that causes lax joints

Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS)

 A chronic illness characterized by completely debilitating fatigue amongst other symptoms.

Upright MRI

Weight-bearing MRI scan where the patient can assume various different positions. Currently, in our opinion, FONAR is the only manufacturer of truly upright MRI scanners.

Supine MRI

A traditional, horizontal, face-up MRI scan

Cineradiology

Similar to Digital Motion Radiology or fluoroscopy, an x-ray in motion (in this case lateral cervical flexion and extension)

CBCT

Cone Beam Computed Tomography (CT). CT technology with less radiation.

MRV/MRA

MRI study of the veins and/or arteries, usually requiring contrast, but in some cases with no contrast using TOF sequence (“Time of Flight”).

DICOM

Digital file format for medical images

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Contact

Neurosurgery & Spine Surgery
Barcelona. Spain
Phone: +34 93 220 28 09
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