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There are two main algorithms, the Canadian C-spine rule and NEXUS, which are used to decide who requires cervical spine imaging via CT scan [6] after blunt trauma, and who can be cleared without imaging. [4] The Canadian C-spine rule appears to have greater sensitivity and specificity (i.e. fewer false positives and false negatives). [17]
Excluding a cervical spinal injury requires clinical judgement and training. Under the NEXUS guidelines, when an acute blunt force injury is present, a cervical spine is deemed to not need radiological imaging if all the following criteria are met: There is no posterior midline cervical tenderness; There is no evidence of intoxication
Finally, the use of magnetic resonance imaging (MRI) allowed for even better depiction of the spine and soft tissue abnormalities in particular. Again, a novel acronym was proposed to classify patients without traumatic signs using radiographs, CT and MRI. The term spinal cord injury without neuroimaging abnormality (SCIWONA) was used.
Blood-oxygen-level dependent imaging: BOLD: Changes in oxygen saturation-dependent magnetism of hemoglobin reflects tissue activity. [26] Localizing brain activity from performing an assigned task (e.g. talking, moving fingers) before surgery, also used in research of cognition. [27] Magnetic resonance angiography (MRA) and venography: Time-of ...
Functional magnetic resonance imaging (fMRI) of the spinal cord (spinal fMRI) is an adaptation of the fMRI method that has been developed for use in the brain. Although the basic principles underlying the methods are the same, spinal fMRI requires a number of specific adaptations to accommodate the periodic motion of the spinal cord, the small cross-sectional dimensions (roughly 8 mm × 15 mm ...
Spinal cord injury; MRI of a fractured and dislocated cervical vertebra (C4) in the neck that is compressing the spinal cord: Specialty: Neurosurgery: Types: Complete, incomplete [1] Diagnostic method: Based on symptoms, medical imaging [1] Treatment: Spinal motion restriction, intravenous fluids, vasopressors [1] Frequency: c. 12,000 annually ...
This practice has come under review recently as incidence rates of unstable spinal trauma can be as low as 2% in immobilized patients. In clearing the cervical spine, Canadian studies have developed the Canadian C-Spine Rule (CCR) for physicians to decide who should receive radiological imaging. [9]
The spine (that is, the vertebral column. A projectional radiograph of the spine confers an effective dose of approximately 1.5 mSv, comparable to a background radiation equivalent time of 6 months. Cervical spine: The standard projections in the UK AP and Lateral. Peg projection with trauma only.