CT REGISTRY REVIEW (MIC) EXAM WITH CORRECT ACTUAL
QUESTIONS AND CORRECTLY WELL DEFINED ANSWERS LATEST
ALREADY GRADED A+
In order for an x-ray photon to be measured it must:
1. enter the detector chamber
2. be absorbed by the detector material
3. be converted to a measurable event - (answer)1,2,3
Which system component converts the projection attenuation data into the proper digital form for the
array processor? - (answer)analog-to-digital converter
Which of the following is NOT a function of a PACS system?
a. reconstruction of the image from the raw data
b. long term data storage
c. digital distribution of images
d. image display for the radiologist - (answer)reconstruction of the image from raw data
Which of the following is not part of the CT tube?
a. tungsten target
b. collimator
c. rotating anode
d. filament - (answer)collimator
Which of the following is FALSE regarding CT systems?
1. they are limited to nonoblique transverse scanning
2. they cannot generate a straight coronal or sagittal image
3. hey have no moving parts - (answer)1,2,3
Xrays are used in CT because:
,CT REGISTRY REVIEW (MIC) EXAM WITH CORRECT ACTUAL
QUESTIONS AND CORRECTLY WELL DEFINED ANSWERS LATEST
ALREADY GRADED A+
a. they are easily produced by the high frequency generator
b. they are less harmful than the heating effects of microwave radiation
c. they penetrate the body according to specific attenuation characteristics of each tissue
d. the FDA imposes no limit on the dose to the patient - (answer)C
Most of the commands from the technologists are received by the: - (answer)operators console
Xrays are produced whenever fast moving electrons collide with any form of matter because: -
(answer)The electron loses kinetic energy which is converted into the emission of an x-ray photon
The mA determines the: - (answer)quantity of x-ray photons
Which of the following is a component NOT normally located in the gantry of a modern CT system? -
(answer)array processor
Tube interscan delay time refers to: - (answer)the time between the end of one scan and the start of the
next scan during which the tube will cool
Increased _______ will increase the likelihood that a given x-ray will penetrate a material
1. kV
2. mA
3. exposure time - (answer)1
Which of the following are NOT commonly used on today's commercially available CT scanners?
1. xenon detectors
2. fourth-generation technology
3. continous rotation technology - (answer)1,2
,CT REGISTRY REVIEW (MIC) EXAM WITH CORRECT ACTUAL
QUESTIONS AND CORRECTLY WELL DEFINED ANSWERS LATEST
ALREADY GRADED A+
Which of the following statements is FALSE regarding occurrences after an x-ray photon penetrates the
detector aperture?
1. the photon can pass through the detector unmeasured
2. the photon is converted completely into a electron
3. the measured signal in enhanced by an amplifier - (answer)2
Scatter radiation is caused by: - (answer)deflections from the original trajectory of an x-ray photon
through the patient
What control does the operator have over the x-rays in a CT exam? - (answer)the energy level and the
quantity of x-rays can be selected
Which of the following is the standard that's used to achieve compatibility for image transfer between
various imaging modalities, viewing stations, and printers in a hospital? - (answer)DICOM
The enormous heat that builds up in the CT tube is caused by what? - (answer)Collision of the electron
beam with the tungsten target on the tube anode
_________________ made helical imaging possible - (answer)Continuous rotation scanners
The patient table:
a. may move continuously during the scan
b. can never be positioned automatically by software due to safety precautions
c. remains stationary through the exam once it is initially positioned
d. only moves after each slice is completed - (answer)A
, CT REGISTRY REVIEW (MIC) EXAM WITH CORRECT ACTUAL
QUESTIONS AND CORRECTLY WELL DEFINED ANSWERS LATEST
ALREADY GRADED A+
The main purpose of the detector is to: - (answer)capture x-ray photons and convert them to a
measurable signal
The cathode filament: - (answer)helps determine the size of the focal spot
Which of the statements in TRUE:
1. kV is the voltage potential between the tube cathode and anode while mA ultimately controls the
filament temp of the cathode filament
2. kV controls the energy level of the x-ray photons and mA controls the number of x-ray photons
emitted from the tube
3. although kV and the mA affect the operation of the CT x-ray tube, the two parameters have no bearing
on the image quality - (answer)1,2
The number of electrons that flow from the cathode to the anode is controlled by the: - (answer)mA
Which of the following is TRUE regarding solid state detectors:
1. x-ray photons cause the detectors to generate a flash of light
2. they are the detector type used on most CT scanners
3. they can be used in both third-generation and fourth-generation CT systems - (answer)1,2,3
The slip ring on continous rotation CT scanners:
1. prevent the high voltage cable from winding up
2. allows the exam to commence more rapidly
3. eliminates the need for the reversal of gantry frame rotation - (answer)1,2,3
CT is commonly referred to as all of the following except:
1. computerized axial tomography
QUESTIONS AND CORRECTLY WELL DEFINED ANSWERS LATEST
ALREADY GRADED A+
In order for an x-ray photon to be measured it must:
1. enter the detector chamber
2. be absorbed by the detector material
3. be converted to a measurable event - (answer)1,2,3
Which system component converts the projection attenuation data into the proper digital form for the
array processor? - (answer)analog-to-digital converter
Which of the following is NOT a function of a PACS system?
a. reconstruction of the image from the raw data
b. long term data storage
c. digital distribution of images
d. image display for the radiologist - (answer)reconstruction of the image from raw data
Which of the following is not part of the CT tube?
a. tungsten target
b. collimator
c. rotating anode
d. filament - (answer)collimator
Which of the following is FALSE regarding CT systems?
1. they are limited to nonoblique transverse scanning
2. they cannot generate a straight coronal or sagittal image
3. hey have no moving parts - (answer)1,2,3
Xrays are used in CT because:
,CT REGISTRY REVIEW (MIC) EXAM WITH CORRECT ACTUAL
QUESTIONS AND CORRECTLY WELL DEFINED ANSWERS LATEST
ALREADY GRADED A+
a. they are easily produced by the high frequency generator
b. they are less harmful than the heating effects of microwave radiation
c. they penetrate the body according to specific attenuation characteristics of each tissue
d. the FDA imposes no limit on the dose to the patient - (answer)C
Most of the commands from the technologists are received by the: - (answer)operators console
Xrays are produced whenever fast moving electrons collide with any form of matter because: -
(answer)The electron loses kinetic energy which is converted into the emission of an x-ray photon
The mA determines the: - (answer)quantity of x-ray photons
Which of the following is a component NOT normally located in the gantry of a modern CT system? -
(answer)array processor
Tube interscan delay time refers to: - (answer)the time between the end of one scan and the start of the
next scan during which the tube will cool
Increased _______ will increase the likelihood that a given x-ray will penetrate a material
1. kV
2. mA
3. exposure time - (answer)1
Which of the following are NOT commonly used on today's commercially available CT scanners?
1. xenon detectors
2. fourth-generation technology
3. continous rotation technology - (answer)1,2
,CT REGISTRY REVIEW (MIC) EXAM WITH CORRECT ACTUAL
QUESTIONS AND CORRECTLY WELL DEFINED ANSWERS LATEST
ALREADY GRADED A+
Which of the following statements is FALSE regarding occurrences after an x-ray photon penetrates the
detector aperture?
1. the photon can pass through the detector unmeasured
2. the photon is converted completely into a electron
3. the measured signal in enhanced by an amplifier - (answer)2
Scatter radiation is caused by: - (answer)deflections from the original trajectory of an x-ray photon
through the patient
What control does the operator have over the x-rays in a CT exam? - (answer)the energy level and the
quantity of x-rays can be selected
Which of the following is the standard that's used to achieve compatibility for image transfer between
various imaging modalities, viewing stations, and printers in a hospital? - (answer)DICOM
The enormous heat that builds up in the CT tube is caused by what? - (answer)Collision of the electron
beam with the tungsten target on the tube anode
_________________ made helical imaging possible - (answer)Continuous rotation scanners
The patient table:
a. may move continuously during the scan
b. can never be positioned automatically by software due to safety precautions
c. remains stationary through the exam once it is initially positioned
d. only moves after each slice is completed - (answer)A
, CT REGISTRY REVIEW (MIC) EXAM WITH CORRECT ACTUAL
QUESTIONS AND CORRECTLY WELL DEFINED ANSWERS LATEST
ALREADY GRADED A+
The main purpose of the detector is to: - (answer)capture x-ray photons and convert them to a
measurable signal
The cathode filament: - (answer)helps determine the size of the focal spot
Which of the statements in TRUE:
1. kV is the voltage potential between the tube cathode and anode while mA ultimately controls the
filament temp of the cathode filament
2. kV controls the energy level of the x-ray photons and mA controls the number of x-ray photons
emitted from the tube
3. although kV and the mA affect the operation of the CT x-ray tube, the two parameters have no bearing
on the image quality - (answer)1,2
The number of electrons that flow from the cathode to the anode is controlled by the: - (answer)mA
Which of the following is TRUE regarding solid state detectors:
1. x-ray photons cause the detectors to generate a flash of light
2. they are the detector type used on most CT scanners
3. they can be used in both third-generation and fourth-generation CT systems - (answer)1,2,3
The slip ring on continous rotation CT scanners:
1. prevent the high voltage cable from winding up
2. allows the exam to commence more rapidly
3. eliminates the need for the reversal of gantry frame rotation - (answer)1,2,3
CT is commonly referred to as all of the following except:
1. computerized axial tomography
