CT Flashcards
CT produces
cross sectional axial slices
indications for CT
bone & soft tissues tumors
fx
intra-articular abnormalities
bone fragment detection
bone mineral analysis
neuroimaging
limitations for CT
inability to distinguish small areas of different tissues
CT mechanisms
scanning process
data conversion
3D CT
multiplanar reconstruction - images can be rotated in space on computer screen
CT myelogram
contrast material allows visualization of structures that impinge on neurologic structures
distinguish osteophytes, ligament infolding, disc material
what is an advantage over the radiograph
radiodensity free of superimposed tissues
what structures appear more white
denser stuctures
voxel
product of pixel and slice thickness
how to view sagittal image
view from left to right
how to view coronal image
view as if facing pt
bone clinical applications?
subtle fx
degenerative changes
serious trauma
spinal stenosis
IV disc pathology
intra-articular loose bodies
osseous alignment in any plane
benefits of CT
less expensive than MR
less time
benefits over problems related to physical barriers w/ MRI
limitations of CT
given observation is based on radiodensity, tissues of similar radiodensity may not be distinguishable
radiation exposure
