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Human Imaging > CT vs MRI vs Convention Plain Film > Flashcards

CT vs MRI vs Convention Plain Film Flashcards

1
Q

Requires at least 2 views 90 degrees from each other

A

Conventional Radiography

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2
Q
  • Low cost
  • widespread availability
  • excellent skeletal images
A

Conventional Radiography

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3
Q

Disadvantages:

  • Has ionizing radiation
  • poorly visualizes soft tissue
  • less sensitive to subtle pathology(stress fractures) than other methods
A

Conventional Radiography

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4
Q

Primary uses:
visualizing pathology of bones and joints
-monitoring fracture healing
-visualizing orthopedic hardware

A

Conventional Radiography

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5
Q

Produces cross-sectional images or slices of tissue using radiation

A

CT

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6
Q

Produces cross-sectional images or slices of tissue using strong magnetic field

A

MRI

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7
Q

Usually follows conventional radiography to confirm a diagnosis or further define pathology

A

CT

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8
Q

May be primary imaging modality in serious trauma as injuries to both osseous and soft tissue structures can be determined from imaging series

A

CT

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9
Q

Not first imaging choise; usually preceded by other modalities

A

MRI

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10
Q

First-order diagnostic imaging modality

A

Conventional Radiograph

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11
Q

Involve T1 and T2 imaging protocols

A

MRI

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12
Q

True or False: T2 is good at visualizing anatomical detail and has good resolution

A

False: this is the definition of T1

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13
Q

True or False: T1 would be used to view free water and edema

A

False: this is the definition of T2

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14
Q

Advantages:

-better contrast resolution than conventional raidography for both osseous and soft tissue

A

CT

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15
Q

Provides multiplanar images of tissue

A

CT

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16
Q

Scanning times are shorter

A

CT has shorter scanning times than MRI

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17
Q

Thinner slices

A

CT over MRI

18
Q

2nd most expensive Modality

A

CT

19
Q

Most expensive modality

A

MRI

20
Q

Excellent soft tissue contrast with no ionizing radiation

A

MRI

21
Q

Claustrophobia and obesity can be a problem with normal scanner; but there is also an open option that alleviates the problem

A

MRI

22
Q

Long imaging time

A

MRI

23
Q

Expensive

A

MRI

24
Q

Differentiates between tissues based on radiodensities

A

CT

25
Q

Superior soft tissue characterization

A

MRI

26
Q

Superior osseous anatomy(despite Xray)

A

CT

27
Q

Contraindicated in the presence of cardiac pacemakers

A

MRI

28
Q

Primarily used to evaluate subtle or complex fractures of bone; showing bone fragments

A

CT

29
Q

Evaluation of spinal arthritic changes and spinal stenosis

A

CT

30
Q

Evaluation of loose bodies in a joint

A

CT

31
Q

Evaluation of soft tissue

A

CT

32
Q

Identifying and characterizing soft tissue injuries and pathology ; as well as bone pathology(especially if bone marrow changes are present)

A

MRI

33
Q

Evaluation of hematomas and joint effusions

A

MRI

34
Q

Intervertebral disk pathology: differentiation between disk herniation and other causes of impingement

A

MRI

35
Q

Identifying and staging osteochondral fractures and osteochondritis dissecans

A

MRI

36
Q

Early detection of stress fractures

A

MRI

37
Q

May be used to detect fracture of bony lesions when other imaging modalities were unmarkable

A

Bone Scan

38
Q

Highly sensitive modality; low specificity

A

Bone Scan

39
Q

A viable alternative to MRI for evaluating msk soft tissue

A

ultrasound

40
Q

Low cost and portability with no contraindications

A

ultrasound

41
Q

Localizing bone tumors

A

bone scan

42
Q

detecting metastases

A

bone scan

Human Imaging (3 decks)

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