Radiology Flashcards
What is the initial imaging modality for spine evaluation?
Xray with two views - frontal and lateral.
When do you use CT for spine evaluation?
When evaluation a trauma - can also add contrast to evaluate nerve roots.
What is the best modality for evaluation spinal cord, discs, tumor and infection?
MRI
Where is contrast injected for outlining the spinal cord?
The thecal sac.
What do you do in an MRI to see cord and CSF?
Nothing - you can see it without contrast. This is what makes MRI such a great modality for evaluating spine trauma.
What color is fluid in a T1 weighted MRI
dark
What color is fluid in a T2 weighted MRI
bright
What color is cortical bone in a CT
White
What color is cortical bone in an MRI
Black
Does CT or MRI give radiation?
CT has high levels MRI has none.
What is the preferred modality for the pelvis?
Xray w/ frog leg if needed
What is the best modality for evaluating complex fractures of the pelvis?
CT
What is the best modality for evaluating soft tissue and joint effusions of the hip?
MRI
What is the best modality for evaluating ligament, menisci and soft tissue injuries of the knee?
MRI
What is the best way to evaluate lower extremity vasculature.
Catheter angiogram
