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CT MOCK EXAM QUESTIONS WITH CORRECT ANSWERS
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CT MOCK EXAM QUESTIONS WITH CORRECT ANSWERS
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CT MOCK EXAM QUESTIONS WITHCORRECT ANSWERS
Advantages of a saline flush immediately after the IV administration of iodinated
contrast material include:
1. reduction in required contrast agent
2. reduction in the incidence of contrast induced nephrotoxicity
3. reduction of streaking artifact from dense contrast agent in the vasculature
A: 1 only
B: 3 only
C: 2 and 3 only
D: 1, 2, and 3 - Answer-D: 1, 2, and 3
Cardiac computed tomography (CT) applications include all of the following except:
A. gated stress imaging
B. assessment of pulmonary veins
C. coronary angiography
D. ventricular function assessment - Answer-A. gated chest imaging
Computed tomographic techniques have proved useful in imaging each of the following
except:
A. metastatic lung disease
B. stroke
C. Renal vasculature
D. coronary artery disease - Answer-A. metastatic lung disease
All of the following are steps crucial to performing a computed tomography angiography
examination except:
A. decreased collimation
B. patient preparation
C. contrast media administration
D. acquisition measures - Answer-A. decreased collimation
The table speed can be expressed as:
A. d=R/T
B. d=R+S/t
C. S=R/P+t
D. P=R/t-s - Answer-d=R/T
The selection of peak kilovoltage (kVp) and milliamperage used in computed
tomographic angiography examinations is usually determined by each of the following
except:
A. abnormalities of area being imaged
,B. patient body habitus
C. level of noise in images
D. patient size - Answer-C. level of noise in images
All of the following are automated systems used to assist with contrast administration
except:
A. smart bolus
B. CARE bolus
C. Smart prep
D. Sure start - Answer-A. smart bolus
Which of the following visualization tools reconstructs faster than any other 3D
technique?
A. multiplanar reconstruction
B. Interactive cine
C. volume rendering
D. shaded surface display (SSD) - Answer-A. multiplanar reconstruction
SSD images are useful in the display of all of the following except:
A. demonstrating tortuous structures
B. surface controls of vessels
C. vascular relationships
D. vessel origins - Answer-A. Demonstrating tortuous structures
Which visualization tool is most frequently used in computed tomographic angiography
examinations to display the structure of vessels?
A. maximum intensity projection
B. SSD
C. volume rendering
D. interactive cine - Answer-A. maximum intensity projection
Maximum intensity projection can be used to separate all of the following except:
A. Intravascular thrombus
B. lumen thrombus
C. Cerebral vascular accidents
D. Vascular calcifications - Answer-C. cerebral vascular accidents
Which visualization technique uses all of the information in the axial data set to display
internal structures?
A. maximum intensity projection
B. volume rendering
C. interactive cine
D. multiplanar reconstructions - Answer-B. volume rendering
Which volume-rendering parameter refers to the degree that structures close to the user
obscure structures that are farther away?
,A. brightness
B. accuracy
C. windowing
D. opacity - Answer-D. opacity
Which visualization tool refers to the viewing and evaluation of the images in the axial
data set by panning through the set of images?
A. interactive cine
B. maximum intensity projection
C. multiplanar reconstructions
D. volume rendering - Answer-A. interactive cine
What technological advancement made spiral/helical scanning possible thus creating
one basis for continuous scanning in CT imaging?
A. step-and-shoot acquisition
B. slip ring
C. xenon detector array
D. back-projection algorithm - Answer-B. slip ring
All of the following are fundamental imaging principles involved in real-time CT except:
A. fast image reconstruction
B. volume rendering capabilities
C. fast continuous scanning
D. continuous image display - Answer-B. Volume rendering capabilities
Dedicated hardware components of computed tomography fluoroscopy include all of the
following except:
A. direct conversion detectors
B. high speed memory
C. fast arithmetic unit
D. back projection gate array - Answer-A. direct conversion detectors
The operator does not have control of which of action from the control console during a
CT fluoroscopy procedure?
A. gantry tilt
B. table movement
C. detector selection
D. table height - Answer-C. detector selection
The maximum fluoroscopy time for continuous imaging is:
A. 200 seconds
B. 50 seconds
C. 150 seconds
D. 100 seconds - Answer-D. 100 seconds
Image quality parameters in CT fluoroscopy include all of the following except:
, A. density resolution
B. contrast resolution
C. spatial resolution
D. artifacts - Answer-B. contrast resolution
Virtual endoscopy allows the viewer to "fly through" each of these structures:
A. colon
B. vessels
C. cortical bone
D. tracheobronchial tree - Answer-C. Cortical bone
_______ information is used to assess the three elements of technique of the 3D
imaging procedure
A. quantitative
B. qualitative
C. virtual
D. reconstructed - Answer-A. quantitative
The most familiar coordinate system is the:
A. scanner coordinate system
B. scene coordinate system
C. object coordinate system
D. matrix coordinate system - Answer-B. scene coordinate system
The zero point is called:
A. height of axes
B. cartesian point
C. point of intersection
D. width of axes - Answer-C. point of intersection
What space does the x, y, and z coordinates define in which multidimensional data are
represented?
A. matrix
B. blank space
C. virtual space
D. scene space - Answer-D. scene space
The generation of a 3D object by using a computer software is called:
A. modeling
B. lighting
C. rendering
D. shading - Answer-A. modeling
Which modeling technique transforms a two-dimensional profile into a three-
dimensional object?
A. procedural texturing
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