RT 212 Ch. 17 & 18..
A CT colonography requires the use of ________ as a c
contrast medium.
a. barium sulfate
b. iodinated rectal contrast
c. air
d. all of the above
A collection of blood accumulating under the dura d
mater caused by trauma is termed:
a. glioma.
b. subarachnoid hemorrhage.
c. subdural abscess.
d. subdural hematoma.
A condition caused by an abnormal amount of CSF in d
the ventricles is termed:
a. pneumoencephalos.
b. cerebral atrophy.
c. encephalitis.
d. hydrocephalus.
A lower pitch ratio such as a 2.0:1 ratio with slice overlap b
leads to a reduced patient dose.
a. False
b. True
A predetermined procedure is the definition for: b
a. scan parameter.
b. protocol.
c. procedure.
d. technique.
A technique used to view vessels demonstrated in CTA b
is termed:
a. windowing.
b. maximum intensity projection.
c. multiplanar reconstruction.
d. volume scanning.
1 of 6
, RT 212 Ch. 17 & 18..
Along with the posterior pituitary gland and the b
infundibulum, what other structure or region is
associated with the hypothalamus?
a. Thalamus
b. Optic chiasm
c. Falx cerebri
d. Olfactory nerve
An example of a nonvascular interventional procedure d
is:
a. stent placement.
b. thrombolysis.
c. embolization of a vessel.
d. nephrostomy.
An undesired feature or density in the CT image not c
representative of anatomy is a(n):
a. CT aberration.
b. windowing flaw.
c. artifact.
d. noise.
Another term for the insula is the central lobe. a
a. True
b. False
Approximately ____ of all head CTs generally require c
intravenous contrast media.
a. 10% to 30%
b. 30% to 50%
c. 50% to 90%
d. None of the above; all require contrast media.
Artifacts caused by patient motion are reduced with a
volume CT scanning as compared with earlier
generation scanners.
a. True
b. False
2 of 6
A CT colonography requires the use of ________ as a c
contrast medium.
a. barium sulfate
b. iodinated rectal contrast
c. air
d. all of the above
A collection of blood accumulating under the dura d
mater caused by trauma is termed:
a. glioma.
b. subarachnoid hemorrhage.
c. subdural abscess.
d. subdural hematoma.
A condition caused by an abnormal amount of CSF in d
the ventricles is termed:
a. pneumoencephalos.
b. cerebral atrophy.
c. encephalitis.
d. hydrocephalus.
A lower pitch ratio such as a 2.0:1 ratio with slice overlap b
leads to a reduced patient dose.
a. False
b. True
A predetermined procedure is the definition for: b
a. scan parameter.
b. protocol.
c. procedure.
d. technique.
A technique used to view vessels demonstrated in CTA b
is termed:
a. windowing.
b. maximum intensity projection.
c. multiplanar reconstruction.
d. volume scanning.
1 of 6
, RT 212 Ch. 17 & 18..
Along with the posterior pituitary gland and the b
infundibulum, what other structure or region is
associated with the hypothalamus?
a. Thalamus
b. Optic chiasm
c. Falx cerebri
d. Olfactory nerve
An example of a nonvascular interventional procedure d
is:
a. stent placement.
b. thrombolysis.
c. embolization of a vessel.
d. nephrostomy.
An undesired feature or density in the CT image not c
representative of anatomy is a(n):
a. CT aberration.
b. windowing flaw.
c. artifact.
d. noise.
Another term for the insula is the central lobe. a
a. True
b. False
Approximately ____ of all head CTs generally require c
intravenous contrast media.
a. 10% to 30%
b. 30% to 50%
c. 50% to 90%
d. None of the above; all require contrast media.
Artifacts caused by patient motion are reduced with a
volume CT scanning as compared with earlier
generation scanners.
a. True
b. False
2 of 6
