CT test || 100% Error-free Solutions.
The gantry of the CT unit contains the
A) Post processing workstation
B) X-ray tube
C) Operator's Guide interface
D) All of the above correct answers B) X-ray tube
Computed tomography sections are acquired in the __________ plane.
A) Coronal
B) transverse
C) Sagittal
D) orthogonal correct answers B) transverse
To achieve coronal or sagittal sections in CT imaging
A) the Gantry is repositioned
B) the patient is repositioned to go in head first
C) reconfiguration software is implemented
D) the patient is positioned feet first correct answers C) reconfiguration software is implemented
First generation, CT scanners, scan the ________ only
A) head
B) Thorax
C) abdomen
D) pelvis correct answers A) head
The most recent generation of CT scanners use a _________ motion.
A) translate-rotate
B) helical
C) rotate-translate
D) elliptical correct answers B) helical
The CT table is
A) made of carbon graphite
B) rated for maximum weight
C) motor driven
D) all of the above correct answers D) all of the above
Modern pulsed CT scanners operate at
,A) 120 kvp
B) 1-5 msec pulses
C) up to 1,000 mA
D) all of the above correct answers D) all of the above
The CT radiation beam is collimated
A) at the tube exit
B) at the detector entrance
C) pre-patient and post patient
D) all of the above correct answers D) all of the above
The ________ is determined by how well the detector utilizes the absorbed photon information
A) capture efficiency
B) absorption efficiency
C) conversion efficiency
D) response time correct answers C) conversion efficiency
The ______ is how well the detectors receive photons from the patient
A) capture efficiency
B) absorption efficiency
C) conversion efficiency
D) response time correct answers A) capture efficiency
The ________ is how well the detectors detect/convert the incoming photon energy
A) capture efficiency
B) absorption efficiency
C) conversion efficiency
D) response time correct answers B) absorption efficiency
Contemporary CT scanners use solid state detectors. These detectors consist of
A) sodium iodide crystals
B) rare earth ceramic scintillators
C) xenon gas
D) amorphous selenium correct answers B) rare earth ceramic scintillators
The CT console provides the radiographer access to
A) the software program
B) table movement
C) gantry tilt
D) all of the above correct answers D) all of the above
, The localization image produced by the CT scanner is technically called a/an
A) volume rendered image
B) scout film
C) scanogram
D) FOV image correct answers C) scanogram
The process of combining detector elements into various combinations in order to set sliced
thickness is called detector
A) modulation
B) partitioning
C) binning
D) interpolation correct answers C) binning
A series of tissue density values that evolved for CT measurements is called ____ units.
A) Hounsfield
B) H & D
C) attenuation
D) Iterative correct answers A) Hounsfield
The resolution of multi-slice CT image depends on the
A) pixel
B) voxel
C) matrix size
D) all of the above correct answers D) all of the above
The CT radiographer usually varies the ____ to control the primary beam.
A) mA
B) time
C) kvp
D) distance correct answers mA
The smaller the scan field size, the
A) better the resolution
B) faster the scan time
C) lesser the risk of motion
D) all of the above correct answers D) all of the above
A ________ artifact is caused by motion
The gantry of the CT unit contains the
A) Post processing workstation
B) X-ray tube
C) Operator's Guide interface
D) All of the above correct answers B) X-ray tube
Computed tomography sections are acquired in the __________ plane.
A) Coronal
B) transverse
C) Sagittal
D) orthogonal correct answers B) transverse
To achieve coronal or sagittal sections in CT imaging
A) the Gantry is repositioned
B) the patient is repositioned to go in head first
C) reconfiguration software is implemented
D) the patient is positioned feet first correct answers C) reconfiguration software is implemented
First generation, CT scanners, scan the ________ only
A) head
B) Thorax
C) abdomen
D) pelvis correct answers A) head
The most recent generation of CT scanners use a _________ motion.
A) translate-rotate
B) helical
C) rotate-translate
D) elliptical correct answers B) helical
The CT table is
A) made of carbon graphite
B) rated for maximum weight
C) motor driven
D) all of the above correct answers D) all of the above
Modern pulsed CT scanners operate at
,A) 120 kvp
B) 1-5 msec pulses
C) up to 1,000 mA
D) all of the above correct answers D) all of the above
The CT radiation beam is collimated
A) at the tube exit
B) at the detector entrance
C) pre-patient and post patient
D) all of the above correct answers D) all of the above
The ________ is determined by how well the detector utilizes the absorbed photon information
A) capture efficiency
B) absorption efficiency
C) conversion efficiency
D) response time correct answers C) conversion efficiency
The ______ is how well the detectors receive photons from the patient
A) capture efficiency
B) absorption efficiency
C) conversion efficiency
D) response time correct answers A) capture efficiency
The ________ is how well the detectors detect/convert the incoming photon energy
A) capture efficiency
B) absorption efficiency
C) conversion efficiency
D) response time correct answers B) absorption efficiency
Contemporary CT scanners use solid state detectors. These detectors consist of
A) sodium iodide crystals
B) rare earth ceramic scintillators
C) xenon gas
D) amorphous selenium correct answers B) rare earth ceramic scintillators
The CT console provides the radiographer access to
A) the software program
B) table movement
C) gantry tilt
D) all of the above correct answers D) all of the above
, The localization image produced by the CT scanner is technically called a/an
A) volume rendered image
B) scout film
C) scanogram
D) FOV image correct answers C) scanogram
The process of combining detector elements into various combinations in order to set sliced
thickness is called detector
A) modulation
B) partitioning
C) binning
D) interpolation correct answers C) binning
A series of tissue density values that evolved for CT measurements is called ____ units.
A) Hounsfield
B) H & D
C) attenuation
D) Iterative correct answers A) Hounsfield
The resolution of multi-slice CT image depends on the
A) pixel
B) voxel
C) matrix size
D) all of the above correct answers D) all of the above
The CT radiographer usually varies the ____ to control the primary beam.
A) mA
B) time
C) kvp
D) distance correct answers mA
The smaller the scan field size, the
A) better the resolution
B) faster the scan time
C) lesser the risk of motion
D) all of the above correct answers D) all of the above
A ________ artifact is caused by motion
