Advanced Imaging final Flashcards
which generation of CT scanner is mostly used today?
third
what artifact may be seen with tomographic imaging modalities due to multiple different tissues existing within a voxel?
volume averaging
which hounsfield unit corresponds to water?
0
which statement summarizes how a chest CT examination can display information in multiple planes/
the exam data is gathered in one plane and computerized reformatting organizes the data into additional planes
the intravenous contrast agent utilized in CT scanning is ___?
iodine based
the utility of CT scanning in the assessment of abdominal aortic aneurysm is related to ____
surgical treatment planning
considering tech 99m methylene disphosphonate, which portion is the radionuclide and which is the ligand?
technetium 99m= radionuclide / methylene
dephosphonate=ligand
what is the purpose of the ligand that is used in combination with rdionuclide
to get the bones to hang on to the radionuclide
bone scintigraphy consists of which three phases, in chronological order.
- flow phase, blood pool phase, delayed phase
which of the following is a contraindication for bone scintigraphy?
breast feeding
list 2 areas of normal uptake on bone scan
- SIJ coronoid vertebral bodies,
- bladder kidneys
the main use of bone scintigraphy nowadays is in?
- evaluation for bone lesion dissemination
the main difference between computed radiography and direct radiography is
the cassette
which of the following represents an unintended side effect of digital xray?
dose creep
the main difference between diagnostic grade monitors and standard commercial high resolution monitors is?
diagnostic grade monitors have build in automatic quality control software
