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Jason's Renal Block > Imaging of MSK I & II > Flashcards

Imaging of MSK I & II Flashcards

1
Q

What are:
Radiolucent
Radio-opaque?

A

dark

light

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2
Q

inside bone: 2 types:

A

cortical

cancellous/trebeculae bone

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3
Q

how many epiphyses in head of humerus?

A

3

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4
Q

What can be mis diagnosed as fracture? 3 things

A

epiphyses
ossification centre
nutrient foramen

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5
Q

3 types of joints

A

synovial
cartilaginous
fibrous (skull suture)

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6
Q

shoulder complex ideal position to take radiograph?

A

slight external rotation

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7
Q

MRI what are the 3 fundamental tissue properties?

A

proton density
T1: fluid dark
T2: fluid bright

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8
Q

advantages of plain films?

A

positioning: get standing views
cheap
less radiation
good overview

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9
Q

how long for MRI to scan a joint?

A

~20 minutes

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10
Q

Fat suppressed in T1 or T2?

A

T2

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11
Q

What structures on x-ray see better on internal rotation?

A

humeral head

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12
Q

What structures on x-ray see better on external rotation?

A

greater tuberosity

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13
Q

3 main views for elbow?

A

AP
lateral
AP oblique

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14
Q

what happens if you have elevated fat pads on x-ray in your coranoid/olecranon fossa?

A

joint effusion

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15
Q

When does capitulum first appear?

A

1st year

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16
Q

When does trochlear, lat epicondyle, olecranon first appear?

A

10th year on

17
Q

When does medical epicondyle first appear?

A

5th year

18
Q

When does radial head first appear?

A

5th year

19
Q

when does medial and lateral epicondyle, radial head and olecranon fuse?

A

between 15-20 years

20
Q

What is between the distal ulna and the triguetrum?

A

triangular fibrocartilage

21
Q

what is normal radiocarpal angle?

A

15 degrees

22
Q

how is carpal alignment during wrist movement? why?

A

maintained due to intercarpal ligaments

23
Q

What does nuclear scintigraphy look at?

A

activity within bone

24
Q

what kind of MRI image used in MSK imaging?

A

T2 fat suppressed

Jason's Renal Block (20 decks)

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