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Z Clin Med II - Ortho > Radiology > Flashcards

Flashcards in Radiology Deck (20)
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1
Q

There needs to be a minimum of _ views of an x-ray to r/o fx

A

2

2
Q

When to use a CT

A

More sensitive delineation of fractures
Evaluation for bone tumors
May help guide operative planning

3
Q

When to use an MRI

A

Soft tissue injuries: muscles, tendons, ligaments
Very sensitive for soft tissue tumors
Osteomyelitis
Occult fractures: strongly suspected, but not apparent on plain films
Avascular necrosis

4
Q

How many msV of radiation does the average American receive in a year

A

3

5
Q

What daignostic tool is preferred when looking at the skull?

A

CT-because you can see the bones of the skull and the brain

6
Q

3 views used to look at the sinuses

A

Lateral-sphenoid sinus

Frontal-frontal and ethmoid sinus

Water’s view-Maxillary sinus

7
Q

What will you see on an xray with retropharyngeal abscess

A

Prevertebral soft tissue swelling

8
Q

Standard 5 view series for C spine

A

Lateral (90% of fx seen here)

Open mouth odontoid

AP view

2 oblique views

9
Q

4 lines to look at alignment for the C spine

A

Anterior spinal line

Posterior spinal line

Spinolaminal line

Spinous process line

10
Q

When to use Swimmer’s view

A

When you can’t get adequate view of C7-T1 on normal lateral view

Pt’s shoulder is in full flexion

11
Q

What to look for on odontoid view

A

Fracture through odontoid
Alignment of lateral masses of C1 with C2
Symmetry of C1-C2 interspace

12
Q

What’s the term for a C7 spinous process fx

A

Clay shoveler’s fx

13
Q

What’s the term for a C2 fx subluxation

A

Hangman’s fx

14
Q

Where should the humeral head lie in a Y view of the shoulder

A

Over the intersecting arms of the Y

15
Q

What two views do you get for an elbow

A

lateral and AP

16
Q

What is imporatant to look for on lateral view of the elbow

A

The anterior fat pad should be a black line and the posterior fat pad should not be seen

Both are seen and create a “sail sign” if there is blood d/t a fx

17
Q

What is the term for distal radius fx

A

Colle’s fx

18
Q

Why is it important to find a scaphoid fx

A

Because of the unique blood supply to the scaphoid, the broken piece might not heal and become necrosed

Pt will have pain over anatomical snuffbox

19
Q

What are 3 views of the knee

A

Lateral, AP, and sunrise

20
Q

What are the 3 views of the ankle

A

Lateral, AP, and oblique (Mortise)