CTMT 2336 Houston Community College NEWEST
FINAL EXAM 2026-2027 LATEST UPDATE WITH
COIMPLETE QUESTIONS AND CORRECT DETAILED
ANSWERS\VERIFIED 100% ALREADY GRADED A+
\
High-osmolar contrast media types agents are
Iothalamate meglumine
(Conray) Diatrixoate sodium
(Hypaque)
What medications may be administered to a patient who is having a
sever anaphylactoid reaction to iodinated contrast material?
Epiniephrine- (Adrinalin) is an adrenergeic drug used as a
bronchodilator.
diphenhydramine (Benadryl) - may be used to block the
physiologic effects of the body's release of histamine, thus
reducing the allergic effect of the contrast material.
CTDIw is a weighted index that Approximate's radiation dose on
the basis of variations that occur across the field of view because
of what?
Beam Hardening
,The range of serum iodine concentration for adequate tissue
opacification during contrast-enhanced CT examinations is
2-8 mg/mL
Morison's pouch
What is the common name for the hepatorenal recess.. The space
between the liver and right kidney is a common location for the
abnormal collection of fluid known as ascites
Lisfranc joint is articulation between
tarsals and metatarsals
What are Effervescent agents used for in CT evaluation of the
gastrointestinal tract
ensure proper gastric distention
What percentage of overlap should CT sections be reconstructed to
improve the quality of multiplanar reformation (MPR) images?
50%
,The enhancement washout technique for CT characterization of
adrenal masses includes
thin-section pre-contrast qcquisition through the adrenals,
portal venous phase, and delayed acquissions are obtained
(10 to 15 min washout)
What refers to the measurement of the scanners performance
through quality testing procedures and evaluation of the test results
Quality assurance
What refers to the implementation of corrective actions to improve
any identified performance inadequacies of the CT system found
through quality assurance procedures
quality control
What matrix size was used to reconstruct an image with the display
characteristics DFOV 25 cm and pixel area 0.25(2)
How to solve: The matrix size used to reconstruct an image can
be calculated by dividing the display field of view (DFOX) by the
pixel whose area is 0.25 mm(2) has a linear dimension of 0.5 mm.
Dividing the DFOX of 250 mm by the pixel dimension 0.5 mm gives
a matrix size of approximately 512x512 pixels
, What technical adjustments may be employed to improve the
temporal resolution of an MDCT system
Reductions in scan time (gantry rotation) , image segmentation, and
physiologic gating can be used to reduce the effect of involuntary
motion
The _________ is another way of describing beam hardening in the
posterior fossa of the brain
Hounsfield bar
At the range of photon energies employed during most CT
examinations, water exhibits an approximate attenuation
coefficient value of
0.206
Isodense
possessing CT attenuation values equal to the values of the
surrounding tissue.
FINAL EXAM 2026-2027 LATEST UPDATE WITH
COIMPLETE QUESTIONS AND CORRECT DETAILED
ANSWERS\VERIFIED 100% ALREADY GRADED A+
\
High-osmolar contrast media types agents are
Iothalamate meglumine
(Conray) Diatrixoate sodium
(Hypaque)
What medications may be administered to a patient who is having a
sever anaphylactoid reaction to iodinated contrast material?
Epiniephrine- (Adrinalin) is an adrenergeic drug used as a
bronchodilator.
diphenhydramine (Benadryl) - may be used to block the
physiologic effects of the body's release of histamine, thus
reducing the allergic effect of the contrast material.
CTDIw is a weighted index that Approximate's radiation dose on
the basis of variations that occur across the field of view because
of what?
Beam Hardening
,The range of serum iodine concentration for adequate tissue
opacification during contrast-enhanced CT examinations is
2-8 mg/mL
Morison's pouch
What is the common name for the hepatorenal recess.. The space
between the liver and right kidney is a common location for the
abnormal collection of fluid known as ascites
Lisfranc joint is articulation between
tarsals and metatarsals
What are Effervescent agents used for in CT evaluation of the
gastrointestinal tract
ensure proper gastric distention
What percentage of overlap should CT sections be reconstructed to
improve the quality of multiplanar reformation (MPR) images?
50%
,The enhancement washout technique for CT characterization of
adrenal masses includes
thin-section pre-contrast qcquisition through the adrenals,
portal venous phase, and delayed acquissions are obtained
(10 to 15 min washout)
What refers to the measurement of the scanners performance
through quality testing procedures and evaluation of the test results
Quality assurance
What refers to the implementation of corrective actions to improve
any identified performance inadequacies of the CT system found
through quality assurance procedures
quality control
What matrix size was used to reconstruct an image with the display
characteristics DFOV 25 cm and pixel area 0.25(2)
How to solve: The matrix size used to reconstruct an image can
be calculated by dividing the display field of view (DFOX) by the
pixel whose area is 0.25 mm(2) has a linear dimension of 0.5 mm.
Dividing the DFOX of 250 mm by the pixel dimension 0.5 mm gives
a matrix size of approximately 512x512 pixels
, What technical adjustments may be employed to improve the
temporal resolution of an MDCT system
Reductions in scan time (gantry rotation) , image segmentation, and
physiologic gating can be used to reduce the effect of involuntary
motion
The _________ is another way of describing beam hardening in the
posterior fossa of the brain
Hounsfield bar
At the range of photon energies employed during most CT
examinations, water exhibits an approximate attenuation
coefficient value of
0.206
Isodense
possessing CT attenuation values equal to the values of the
surrounding tissue.
