Spine imaging areas that need work Flashcards

1
Q

How many vertebrae are there in humans?

A

33

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2
Q

Different regions of vertebral column and how many segments?

A
  • C-spine 7
  • T-spine 12
  • L-spine 5
  • Sacrum 5
  • coccyx 4 (tailbone)
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3
Q

in what spinal segment is scoliosis most commonly seen in?

A

thoracic

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4
Q

what two components are the inter-vertebral discs made of?

A
  • annulus fibrosis (outer region)

- nucleus pulposus (inner region)

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5
Q

Being that the nucleus pulposus is 80% water, what signal intensity should one expect to see on a T2 image?

A

hyper-intense

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6
Q

The ligamentum flavum is also known as ___ and serves to ___?

A
  • yellow ligament

- Connect the laminae of adjacent vertebrae

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7
Q

How far does the ligamentum flavum stretch S to I?

A

C1 to S1

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8
Q
  • What should the technologist cover on a C-spine study for a patient that has rheumatoid arthritis and has issues with atlanto-axial instability?
  • What sequence should be used?
A
  • From foramen magnum down instead of C2

- GRE axial images

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9
Q

what do gradient echo T2* sequences aid in diagnosing in C-spine imaging?

A
  • cord anatomy
  • extramedullary disease
  • discriminating between osteophyte vs disc herniation
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10
Q

what is center landmark for a L-spine?

A

1-2 inches above iliac crest or at L3

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11
Q

coverage for sagittal image of L-spine?

A

inferior body of T11 to body of S2

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12
Q

where is the conus medullaris and cauda equina best visualized and what plane?

A
  • lumbar

- sagittal

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13
Q

terms for condition where the spinal cord is pulled lower than its natural position and generally found in children with spina bifida or chiari malformation

A

-tethered cord

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14
Q

What vertebrae are fused in an average spine?

A

S1-5 and Coccygeal 1-4

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15
Q

what refers to a group of neurological disorders related to malformation of the spinal cord?

A
  • tethered spinal cord syndrome

- occult spinal dysraphism sequence

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