CT Image Production - Post-course
Assessment
Measure and convert transmitted radiation into an electrical signal
The purpose of the detector array in computed tomography (CT) is to:
Convert electrical signals into raw data
Measure and convert transmitted radiation into an electrical signal
Reconstruct raw data into image data
Display and store image data
Convert electrical signals into raw data
What is the principal function of the data acquisition system (DAS) in computed tomography (CT)?
Measure and convert transmitted radiation into an electrical signal
Reconstruct raw data into image data
Convert electrical signals into raw data
Display and store image data
,Computer system
Reconstruction of raw data into image data occurs within which component of the computed
tomography (CT) system?
Detector array
Data acquisition system
Computer system
Output devices
Display and store image data
What is the function of output devices in a computed tomography (CT) imaging system?
Measure and convert transmitted radiation into an electrical signal
Convert electrical signals into raw data
Reconstruct raw data into image data
Display and store image data
Pre-patient collimators
What controls the physical size of the x-ray beam?
,Data acquisition system
Pre-patient collimators
Array processor
X-ray generator
Decreased spatial resolution
What is the main disadvantage of using thick detector rows?
Decreased spatial resolution
Increased patient dose
Increased scan time
Decreased contrast resolution
Y-axis position
What axis position has changed in the following series of coronal images?
X-axis position
Y-axis position
Z-axis position
, Axial and sagittal
Measuring a pathology in the x-axis could be accomplished with which of the following imaging planes?
Sagittal only
Axial and sagittal
Axial and coronal
Axial only
Within the scan field-of-view (SFOV)
The patient's anatomy that is saved as raw data in the computed tomography (CT) system includes any
portion of the patient that is:
Within the display field-of-view (DFOV)
Within the scan field-of-view (SFOV)
Outside of the scan field-of-view (SFOV)
Within the scanner gantry
Helical scanning
Which computed tomography (CT) scanning technique collects scan data while the patient table is in
motion?
Axial scanning
Helical scanning
Volume scanning
Assessment
Measure and convert transmitted radiation into an electrical signal
The purpose of the detector array in computed tomography (CT) is to:
Convert electrical signals into raw data
Measure and convert transmitted radiation into an electrical signal
Reconstruct raw data into image data
Display and store image data
Convert electrical signals into raw data
What is the principal function of the data acquisition system (DAS) in computed tomography (CT)?
Measure and convert transmitted radiation into an electrical signal
Reconstruct raw data into image data
Convert electrical signals into raw data
Display and store image data
,Computer system
Reconstruction of raw data into image data occurs within which component of the computed
tomography (CT) system?
Detector array
Data acquisition system
Computer system
Output devices
Display and store image data
What is the function of output devices in a computed tomography (CT) imaging system?
Measure and convert transmitted radiation into an electrical signal
Convert electrical signals into raw data
Reconstruct raw data into image data
Display and store image data
Pre-patient collimators
What controls the physical size of the x-ray beam?
,Data acquisition system
Pre-patient collimators
Array processor
X-ray generator
Decreased spatial resolution
What is the main disadvantage of using thick detector rows?
Decreased spatial resolution
Increased patient dose
Increased scan time
Decreased contrast resolution
Y-axis position
What axis position has changed in the following series of coronal images?
X-axis position
Y-axis position
Z-axis position
, Axial and sagittal
Measuring a pathology in the x-axis could be accomplished with which of the following imaging planes?
Sagittal only
Axial and sagittal
Axial and coronal
Axial only
Within the scan field-of-view (SFOV)
The patient's anatomy that is saved as raw data in the computed tomography (CT) system includes any
portion of the patient that is:
Within the display field-of-view (DFOV)
Within the scan field-of-view (SFOV)
Outside of the scan field-of-view (SFOV)
Within the scanner gantry
Helical scanning
Which computed tomography (CT) scanning technique collects scan data while the patient table is in
motion?
Axial scanning
Helical scanning
Volume scanning
