MRI Spine Imaging
Card Set Information
MRI Spine Imaging
MRI spine imaging
How many articulating vertebrae are there
how many fused vertebrae are there
On T1 weighted images of spine, CSF appears _____ to the spinal cord
hypointense (low signal intensity)
On T2 weighted images of the spine, CSF appears ________ to spinal cord
what are the ligament flava
ligaments which connect the laminae of adjacent vertebrae
What is the sagittal plane in spine ideal to evaluate?
Height of intervertebral bodies/disc
Posterior disc herniation
degree of spinal stenosis
Coronal plane of spine is optimal for
Measuring the degree of right to left curvature
The axial plane of spine best visualizes
dorsal and ventral nerve roots
What is the intervertebral disc made of?
annulus fibrosus and nucleus pulposus
Why would there be a bright signal intensity on T2 images of healthy nucleus pulposus
Because it is made up of 80% water
What images are mandatory in cevical spine imaging for evaluation of cord anatomy(H sign)?
Gradient echo T2* axial images
What coverage should be included in sagittal slices of Lspine?
Inferior body of T11 and S2
What slice orientation is selected through intervertebral disc spaces?
Oblique transverse plane
What area of the spine is LEAST affected by CSF flow?
Which sequence is used the least in a patient with post surgical metal hardware?
Gradient echo sequence
Where does the conus medullaris occur?
What is the end of the spinal cord called?
what is the cauda equina?
Spinal nerves continuing as dangling nerve roots
The terminal nerve root of spine is called
What plane best visualizes the conus and cauda equina?
What is a tethered spinal cord?
spinal cord is pulled lower than natural position. generally in children or patients with spina bifida or chiari malformation
What is the function of the vertebral body?
Strength of vertebral column and support of body weight
What is the innermost portion of the vertebral body called?
What are pedicles
processes that project posteriorly from the vertebral body to meet 2 laminae
what forms the walls of the vertebral foramen?
Vertebral arch and posterior surface of vertebral body
Where are vertebral notices located?
indentations superior and inferior to each pedicle
What is the intervertebral foramina?
where spinal nerves emerge from the vertebral column
What is the strongest cervical vertebrae
What is the most distinctive feature of cervical vertebrae?
Oval shaped transverse foramen found in the transverse process
What does the transverse foramen allow passage for?
vertebral arteries and accompanying veins
What attaches to the anterior tubercle and a posterior tubercle of the transverse process
lateral cervical muscles (levator scapulae and scalenes muscles)
What are the anterior tubercles of the C6 vertebra called?
Carotid tubercles (the common carotid arteries may be compressed in this location to control bleeding from these vessels)
Where is the vertebra prominens?
C7 spinous process