Mosby's CT Exam Review Practice Test
1/Mosby's CT Simulated Exam 1 With
Updated Answers| 2025 LATEST
UPDATED (668 Questions and Correct
Answers) 100%
1, 2, and 3
which of the following technical factors exhibit an effect upon longitudinal spatial resolution?
1) detector collimation
2) detector pitch
3) interpolation algorithm
effective mAs
for a given CT acquisition, the calculated mAs applied to each reconstructed slice may be referred to as
the:
air trapping from copd
during HRCT of the lungs, image acquisition upon full expiration may be performed to improve
demonstration of:
compression
the computer technique used to reduce the size and storage requirements of digital CT image data is
called:
1 and 2
during post-contrast CT imaging of the abdomen, the degree of hepatic parenchymal enhancement
depends on:
1) the iodine concentration of the contrast agent
2) the rate of contrast agent injection
3) the osmolality of the contrast medium
decrease the slice thickness
which of the following will serve to decrease the noise of a CT image?
edge gradient
which of the following terms best describes the artifact present in the image?
,80x80
which of the following is not a typical matrix size used with a modern CT scanner?
lp/cm (line pair per cm)
the spatial resolution of a CT scanner is usually given in the unit of measure:
rectum
number 6 corresponds to which of the following?
below the patient
a suction unit used on a patient with a chest tube should always remain:
cerebellum
number 4 corresponds to which of the following?
sieverts (Sv)
which of the following units is used to quantify effective dose?
high-quality multiplaner reformats
the primary advantage of an isotropic MDCT data-set is:
temporal resolution
the ability of an MDCT system to freeze heart motion during a cardiac CT is described by its:
5
,which number corresponds to the right primary bronchus?
2
which number corersponds to the acetabulum?
spatial resolution
the ability of the ct scanner to image a small high-density object is controlled by the ____ of the scanner
prostatic hypertrophy
a common, nonmalignant enlargement of the prostate gland is typically referred to as:
nasal bone
number 1 corresponds to which of the following?
decrease patient dose
automatic tube current modulation (ATCM) software is utilized by the CT system in an effort to:
external iliac artery
Number 3 corresponds to which of the following?
acromion
, Number 1 corresponds to which of the following?
hydrocephalus
the abnormal accumulation of cerebrospinal fluid on the ventricles of the brain is called:
appendix
Number 5 corresponds to which of the following?
intussusception
the condition whereby a portion of the small intestine collapses or telescopes into itself is termed:
artifact
errors during the measurement of transmitted radiation by the detectors can result in a form of noise on
the image referred to as an:
0.1%
two adjacent pixels are measured to have a difference of 1 HU. This amounts to a tissue density
difference of approximately:
linear attenuation coefficient
the ability of an object to attenuate the xray beam is assigned a value known as the:
gram-negative isolation
which of the following is not a category of isolation technique?
0.3mm
a CT scanner with a limiting resolution of 15 lp/mm can resolve an object as small as:
1024x1024
which of the following matrices would provide the greatest spatial resolution?
esophagus
1/Mosby's CT Simulated Exam 1 With
Updated Answers| 2025 LATEST
UPDATED (668 Questions and Correct
Answers) 100%
1, 2, and 3
which of the following technical factors exhibit an effect upon longitudinal spatial resolution?
1) detector collimation
2) detector pitch
3) interpolation algorithm
effective mAs
for a given CT acquisition, the calculated mAs applied to each reconstructed slice may be referred to as
the:
air trapping from copd
during HRCT of the lungs, image acquisition upon full expiration may be performed to improve
demonstration of:
compression
the computer technique used to reduce the size and storage requirements of digital CT image data is
called:
1 and 2
during post-contrast CT imaging of the abdomen, the degree of hepatic parenchymal enhancement
depends on:
1) the iodine concentration of the contrast agent
2) the rate of contrast agent injection
3) the osmolality of the contrast medium
decrease the slice thickness
which of the following will serve to decrease the noise of a CT image?
edge gradient
which of the following terms best describes the artifact present in the image?
,80x80
which of the following is not a typical matrix size used with a modern CT scanner?
lp/cm (line pair per cm)
the spatial resolution of a CT scanner is usually given in the unit of measure:
rectum
number 6 corresponds to which of the following?
below the patient
a suction unit used on a patient with a chest tube should always remain:
cerebellum
number 4 corresponds to which of the following?
sieverts (Sv)
which of the following units is used to quantify effective dose?
high-quality multiplaner reformats
the primary advantage of an isotropic MDCT data-set is:
temporal resolution
the ability of an MDCT system to freeze heart motion during a cardiac CT is described by its:
5
,which number corresponds to the right primary bronchus?
2
which number corersponds to the acetabulum?
spatial resolution
the ability of the ct scanner to image a small high-density object is controlled by the ____ of the scanner
prostatic hypertrophy
a common, nonmalignant enlargement of the prostate gland is typically referred to as:
nasal bone
number 1 corresponds to which of the following?
decrease patient dose
automatic tube current modulation (ATCM) software is utilized by the CT system in an effort to:
external iliac artery
Number 3 corresponds to which of the following?
acromion
, Number 1 corresponds to which of the following?
hydrocephalus
the abnormal accumulation of cerebrospinal fluid on the ventricles of the brain is called:
appendix
Number 5 corresponds to which of the following?
intussusception
the condition whereby a portion of the small intestine collapses or telescopes into itself is termed:
artifact
errors during the measurement of transmitted radiation by the detectors can result in a form of noise on
the image referred to as an:
0.1%
two adjacent pixels are measured to have a difference of 1 HU. This amounts to a tissue density
difference of approximately:
linear attenuation coefficient
the ability of an object to attenuate the xray beam is assigned a value known as the:
gram-negative isolation
which of the following is not a category of isolation technique?
0.3mm
a CT scanner with a limiting resolution of 15 lp/mm can resolve an object as small as:
1024x1024
which of the following matrices would provide the greatest spatial resolution?
esophagus
