Radiology Flashcards
There needs to be a minimum of _ views of an x-ray to r/o fx
2
When to use a CT
More sensitive delineation of fractures
Evaluation for bone tumors
May help guide operative planning
When to use an MRI
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
How many msV of radiation does the average American receive in a year
3
What daignostic tool is preferred when looking at the skull?
CT-because you can see the bones of the skull and the brain
3 views used to look at the sinuses
Lateral-sphenoid sinus
Frontal-frontal and ethmoid sinus
Water’s view-Maxillary sinus
What will you see on an xray with retropharyngeal abscess
Prevertebral soft tissue swelling
Standard 5 view series for C spine
Lateral (90% of fx seen here)
Open mouth odontoid
AP view
2 oblique views
4 lines to look at alignment for the C spine
Anterior spinal line
Posterior spinal line
Spinolaminal line
Spinous process line
When to use Swimmer’s view
When you can’t get adequate view of C7-T1 on normal lateral view
Pt’s shoulder is in full flexion
What to look for on odontoid view
Fracture through odontoid
Alignment of lateral masses of C1 with C2
Symmetry of C1-C2 interspace
What’s the term for a C7 spinous process fx
Clay shoveler’s fx
What’s the term for a C2 fx subluxation
Hangman’s fx
Where should the humeral head lie in a Y view of the shoulder
Over the intersecting arms of the Y
What two views do you get for an elbow
lateral and AP
