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Hannah RAD II > Vertebral Column - Ostereology, Arthrology, and Positioning > Flashcards

Vertebral Column - Ostereology, Arthrology, and Positioning Flashcards

1
Q

which two vertebral curvatures are anteriorly concave?

A

Thoracic and pelvic

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2
Q

which two vertebral curves are kyphotic curves?

A

Thoracic and pelvic

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3
Q

which two vertebral curves are lordotic curves?

A

Cervical and lumbar

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4
Q

which two vertebral curves are primary curves?

A

Thoracic and pelvic

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5
Q

which spinal condition involves an excessive dorsal curvature of the thoracic vertebral column?

A

Kyphosis

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6
Q

which abnormal spinal condition involves any lateral curvature of the vertebral column?

A

Scoliosis

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7
Q

what is the name of the short, thick bony processes that project posteriorly form the lateral and superior aspects of vertebral bodies of typical vertebrae?

A

Pedicles

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8
Q

from the junction of which two vertebral structures do transverse processes originate in typical vertebrae?

A

Pedicle and lamina

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9
Q

which vertebral structures unite at the origin of the spinous process of a typical vertebra?

A

Both laminae

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10
Q

which structures of a typical vertebra are the zygopophyses?

A

Articular processes

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11
Q

on which structure is the dens located?

A

C2

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12
Q

which structure is known as the “atlas”

A

C1

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13
Q

which structures is known as the “axis”?

A

C2

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14
Q

on which structure is the dens located?

A

Body of C2

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15
Q

which cervical vertebral structures are performed with a foramen for the passage of the vertebral artery and vein?

A

Transverse processes

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16
Q

which vertebral structures have bifid tips?

A

Spinous processes of cervical vertebrae

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17
Q

with reference to the midsagittal plane, how do zygapophyseal joints open in cervical vertebrae?

A

90 degrees laterally

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18
Q

with reference to the midsagittal plane, how do zygapophyseal joints open in thoracic vertebrae?

A

70 to 75 degrees anteriorly

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19
Q

Thoracic vertebrae differ from cervical and lumbar vertebrae because thoracic vertebrae have:

A

Demifacets

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20
Q

which structures articulate with vertebral demifacets?

A

Heads of ribs

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21
Q

with reference to the midsagittal plane, how do zygapophyseal joints open in lumbar vertebrae?

A

30-60 degrees posteriorly

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22
Q

lumbar vertebrae differ from cervical and thoracic vertebrae because lumbar vertebrae have:

A

Broad [rong], large spinous processes

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23
Q

which parts of the sacrum form the joints with the ilia of the pelvis?

A

Auricular surfaces

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24
Q

the AP projection that demonstrates the dens using the Fuchs method differs from the AP projection (open mouth) because the Fuchs method:

A

Extends the chin and keeps the mouth closed

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25
Q

The rad tech should NOT use the Fuchs method to obtain the AP projection of the dens if the patient is:

A

Suspected to have a fracture or degenerative disease

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26
Q

which projection of the cervical vertebrae demonstrates the dens imaged within the foramen magnum?

A

AP projection (Fuchs method)

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27
Q

which cervical structures are best demonstrated with the AP projection (open mouth)?

A

C1 and C2

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28
Q

how should the central ray be directed for the AP projection (open mouth)?

A

Perpendicularly

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29
Q

how and where should the central ray be directed for the AP axial projection of the cervical vertebral column?

A

15-20 degrees cephalad to C4

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30
Q

how should the IR be positioned for the AP axial projection of the cervical vertebral column?

A

Centered to C4

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31
Q

for which projection of the cervical vertebrae should the central ray be angled 15-20 degrees cephalad?

A

AP axial projection

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32
Q

which evaluation criterion does not apply to the AP axial projection of the cervical vertebral column?

A

C1 and C2 should be seen without mandibular superimposition

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33
Q

which projection of the cervical vertebral column requires an SID of 72 inches?

A

Lateral projection

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34
Q

which maneuver should be used to help obtain maximum depression of the shoulders in the lateral projection of the cervical vertebral column?

A

Suspend respiration after full expiration

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35
Q

what should be done so that the magnified shoulder farthest from the IR is projected below the lower cervical vertebrae for the lateral projection of the cervical vertebrae?

A

Direct a horizontal central ray to C4

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36
Q

what should be done to prevent mandibular rami from superimposing cervical vertebrae in the lateral projection of the cervical vertebral column?

A

Elevate the chin

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37
Q

what should be done to reduce the magnification caused by the increased object-to-image distance in the lateral projection of the cervical vertebrae?

A

Use a 72-inch (183 cm) SID

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38
Q

what is the recommended size of the collimated field for the lateral projection of the cervical vertebrae?

A

8 x 10 inches (20 x 24 cm)

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39
Q

which projection of the cervical vertebrae demonstrates the spinous processes elevated and widely separated?

A

Hyperflexion lateral projection

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40
Q

which projection of the cervical vertebrae demonstrates the spinous processes depressed and in close approximation?

A

Hyperextension lateral projection

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41
Q

which projection for cervical vertebrae must be exposed with a horizontal and perpendicular central ray?

A

Lateral

42
Q

How should the central ray be directed for an AP axial oblique projection of the cervical vertebral column?

A

15 to 20 degrees cephalad

43
Q

how should the central ray be directed for an PA axial oblique projection of the cervical vertebral column?

A

15 to 20 degrees caudad

44
Q

which projection of the cervical vertebral column best demonstrates the intervertebral foramina?

A

AP axial oblique projection

45
Q

which position of the cervical vertebral column best demonstrates the left intervertebral foramina when the central ray is angled 15 to 20 degrees cephalad?

A

RPO

46
Q

which position of the cervical vertebral column best demonstrates the right intervertebral foramina when the central ray is angled 15 to 20 degrees caulad?

A

RAO

47
Q

how many degrees from supine or the anatomic position should the entire body be rotated for the AP axial oblique projection of the cervical vertebrae?

A

45 degrees

48
Q

what is the proper amount of head and body rotation for the PA axial oblique projection of the cervical vertebrae?

A

45 degrees

49
Q

which evaluation criterion pertains [un nghiem cho] to the AP projection (Fuchs method)of the cervical vertebrae?

A

The entire dens should be seen through the foramen magnum

50
Q

which evaluation criterion pertains to the AP axial projection of the cervical vertebral column?

A

The spinous processes should be equidistant to the pedicles.

51
Q

which evaluation criterion pertains to the lateral projection of the cervical column?

A

All seven cervical vertebrae should be demonstrated

52
Q

which evaluation criterion pertains to the AP axial oblique projection of the cervical vertebral column?

A

The intervertebral foramina should be open with those farthest from the IR well demonstrated.

53
Q

which evaluation criterion pertains to PA axial oblique projection of the cervical vertebral column?

A

The intervertebral foramina should be open with those closest to the IR well demonstrated.

54
Q

which projection should be included in a cervical series fi the lateral projection does not demonstrate the C7 vertebra?

A

Lateral projection (swimmer’s technique)

55
Q

For the lateral projection (swimmer’s technique) of the cervical vertebrae, how and where should the central ray be directed?

A

Perpendicular to the intervertebral disk space of C7 and T1

56
Q

which of the following structure are best demonstrated with the lateral projection (swimmer’s technique)?

A

Lower cervical and upper thoracic vertebrae

57
Q

for the AP projection of the thoracic vertebral column, where should the central ray be centered on the anterior chest wall?

A

At a point halfway between the jugular notch and the xiphoid process

58
Q

with reference to the patient, where should the top border of the IR or collimated field be positioned for the AP projection of the thoracic vertebrae?

A

1.5 to 2 inches (3.8 to 5 cm) above the top of the shoulders

59
Q

for the AP projection of the thoracic vertebral column with the patient in the supine position, why should the patient’s hips and knees be flexed?

A

To reduce kyphosis

60
Q

which projection most requires usage of the anode heel effect to improve its image quality?

A

AP projection of the thoracic vertebral column

61
Q

which projection best demonstrates the intervertebral foramina of the thoracic vertebral column?

A

Lateral projection

62
Q

what structures are NOT WELL visualized on a lateral projection of the thoracic vertebrae?

A

T1 and T3

63
Q

To what level of the body should the central ray be directed for the lateral projection of the thoracic vertebrae?

A

Inferior angle of the scapula

64
Q

what compensation should be made in the lateral projection of the thoracic vertebral column on a recumbent patient when the lower thoracic region is not parallel with the table?

A

Angle the central ray 10-15 degrees cephalad

65
Q

which of the following would improve visualization of the spinous processes and overall image quality on the lateral projection of the thoracic vertebrae?

A

Placing lead rubber on the table behind the patient

66
Q

which projection of the vertebral column best demonstrates kyphosis?

A

Lateral projection of the thoracic vertebral column

67
Q

which projection of the vertebral column best demonstrates scoliosis?

A

PA projection of the thoracolumbar vertebral column

68
Q

which projection of the vertebral column best demonstrates lordosis?

A

Lateral projection of the lumbar vertebral column

69
Q

why should the patient flex the hips and knees for the AP projection of the lumbar vertebrae?

A

To reduce lumbar lordosis

70
Q

where should the central ray be centered on the patient for the AP projection of the lumbosacral vertebrae?

A

On MSP at the level of the iliac crests

71
Q

when is it recommended that the collimated field size for an AP projection of the lumbar vertebrae be open to 14 x 17 inches (35 x 43 cm)?

A

For trauma patients for visualization of the liver, kidney, spleen, and psoas muscle margins along with air or gas patterns

72
Q

which plane or line of the patient should be centered on the middle of the table for the AP projection of the lumbar vertebral column?

A

Midsagittal [plane]

73
Q

where should the central ray be directed for the AP projection of ONLY the lumbar vertebrae?

A

L4

74
Q

which plane or line of the patient should be centered on the midline of the table for the lateral projection of the lumbar vertebral column?

A

Midcoronal

75
Q

which projection of the lumbar vertebrae best demonstrates intervertebral foramina?

A

Lateral projection

76
Q

how many degrees and in which direction should the central ray be directed for the lateral projection of the lumbar vertebrae when the vertebral column is positioned parallel with the table?

A

Perpendicular [90 degrees]

77
Q

how many degrees and in which direction should the central ray be directed for the lateral projection of the lumbar vertebrae when the vertebral column is NOT parallel with the table?

A

5 degrees caudad for males, 8 degrees caudad for females

78
Q

how many degrees and in which direction should the central ray be directed for the lateral projection of L5-S1 when the vertebral column is positioned parallel with the table?

A

Perpendicular

79
Q

which projection of the lumbar vertebrae best demonstrates the zygapophyseal joints?

A

AP oblique projection

80
Q

which vertebral structures are best demonstrated if a supine patient is rotated 45 degrees with the right side elevated and a perpendicular central ray is directed at the third lumbar vertebra?

A

Zygapophyseal joints on the left side

81
Q

which vertebral structures are best demonstrated with the AP oblique projection of the lumbar vertebral column with the patient positioned in a 45 degree RPO?

A

Zygapophyseal joints of the right side

82
Q

which vertebral structures are best demonstrated with the AP oblique projection of the lumbar vertebral column with the patient positioned in a 45 degree LPO?

A

zygapophyseal joints of the left side

83
Q

which positioning error most likely occurred if the zygapophyseal joints were not well demonstrated and the pedicle was quite anterior on the vertebral body in an image of an AP oblique projection of the lumbar vertebrae?

A

The patient was not rotated enough

84
Q

which positioning error most likely occurred if the zygapophyseal joints were not well demonstrated and the pedicle was quite posterior on the vertebral body in an image of an AP oblique projection of the lumbar vertebrae?

A

The patient was rotated too much

85
Q

which projection of the vertebral column demonstrates the “Scottie dog”?

A

Oblique projection of the lumbar vertebral column

86
Q

what is demonstrated if the “Scottie dog” is well visualized?

A

Zygapophyseal joints of the lumbar vertebrae

87
Q

how many degrees of body rotation are necessary for the AP oblique projection of the lumbar vertebrae?

A

45 degrees

88
Q

which projection of the lumbar vertebrae requires MSP positioned perpendicular to the IR?

A

AP projection

89
Q

which projection of the lumbar vertebrae requires MSP be positioned parallel with the IR?

A

Lateral projection

90
Q

how many degrees and in which direction should the central ray be directed for an AP axial projection of the lumbosacral junction and SI joints?

A

30 to 35 degrees cephalad

91
Q

which projection best demonstrates the right SI joint?

A

AP oblique projection with the patient in the LPO position

92
Q

which projection best demonstrates the left SI joint?

A

AP oblique projection with the patient in the RPO position

93
Q

how many degrees of body rotation form the supine position are required for an AP oblique projection of the SI joints?

A

25 to 30 degrees

94
Q

how many degrees and in which direction should the central ray be directed for AP axial projections of the sacrum?

A

15 degrees cephalad

95
Q

how many degrees and in which direction should the central ray be directed if it is necessary to have the patient prone for a PA axial projection of the sacrum?

A

15 degrees caudad

96
Q

how many degrees and in which direction should the central ray be directed for an Ap axial projection of the coccyx?

A

10 degrees caudad

97
Q

how many degrees and in which direction should the central ray be directed if it is necessary to have the patient prone for a PA axial projection of the coccyx?

A

10 degrees cephalad

98
Q

how many degrees and in which direction should the central ray be directed for the lateral projection of the sacrum?

A

Perpendicular

99
Q

how many degrees and in which direction should the central ray be directed for the lateral projection of the coccyx?

A

Perpendicular

100
Q

which projection of the Ferguson method should be performed to best evaluate scoliosis?

A

Upright Pa

Hannah RAD II (8 decks)

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