CT REGISTRY REVIEW EXAM | QUESTIONS AND ANSWERS |
VERIFIED ANSWERS (100% CORRECT) | LATEST EXAM UPDATE
Using a ___ reconstruction filter would decrease the appearance of noise in a CT
image - CORECT ANSWER- Smooth
A ___ scan uses only a single projection. - CORECT ANSWER- Localizer
T or F
The volume data from which the 3D SSD is generated is created by combining
transverse, sagittal and coronal recons - CORECT ANSWER- False
3 types of storage media that may hold CT image data - CORECT ANSWER- -
internal hard disk
-CD
-re-writable optical disk
___ may have to be edited from the data set to get a diagnostic MIP of a CTA exam
- CORECT ANSWER- Bones
3 advantages to a helical study compared to a conventional serial CT study -
CORECT ANSWER- -shorter total exam time
-can retro recon a slice at any position
-offers best image quality for a brain exam
Which of these utilizes convolution;
, -3D SSD
-Fourier Transform
-filtered back projection - CORECT ANSWER- Filtered back projection
Which technique are tissue excluded by setting a threshold value and eliminating
pixels above and below that threshold - CORECT ANSWER- 3D shaded surface
display
From which of these can the most diagnostic multi-planar reconstructions be
generated
-stacked transverse images from helical
-stacked transverse images from conventional
-stacked localizer - CORECT ANSWER- -stacked helical
The actual attenuation data measured by detectors from all projections during a
scan is contained in CT___ data. - CORECT ANSWER- Raw
T or F
On a single row detector scanner, the thickness is equal to the beam collimating. -
CORECT ANSWER- True
What does a retro recon use which allows the recon FOV to be varied - CORECT
ANSWER- CT raw data
What is common to both a localizer scan and conventional serial scan - CORECT
ANSWER- They both produce digital images
VERIFIED ANSWERS (100% CORRECT) | LATEST EXAM UPDATE
Using a ___ reconstruction filter would decrease the appearance of noise in a CT
image - CORECT ANSWER- Smooth
A ___ scan uses only a single projection. - CORECT ANSWER- Localizer
T or F
The volume data from which the 3D SSD is generated is created by combining
transverse, sagittal and coronal recons - CORECT ANSWER- False
3 types of storage media that may hold CT image data - CORECT ANSWER- -
internal hard disk
-CD
-re-writable optical disk
___ may have to be edited from the data set to get a diagnostic MIP of a CTA exam
- CORECT ANSWER- Bones
3 advantages to a helical study compared to a conventional serial CT study -
CORECT ANSWER- -shorter total exam time
-can retro recon a slice at any position
-offers best image quality for a brain exam
Which of these utilizes convolution;
, -3D SSD
-Fourier Transform
-filtered back projection - CORECT ANSWER- Filtered back projection
Which technique are tissue excluded by setting a threshold value and eliminating
pixels above and below that threshold - CORECT ANSWER- 3D shaded surface
display
From which of these can the most diagnostic multi-planar reconstructions be
generated
-stacked transverse images from helical
-stacked transverse images from conventional
-stacked localizer - CORECT ANSWER- -stacked helical
The actual attenuation data measured by detectors from all projections during a
scan is contained in CT___ data. - CORECT ANSWER- Raw
T or F
On a single row detector scanner, the thickness is equal to the beam collimating. -
CORECT ANSWER- True
What does a retro recon use which allows the recon FOV to be varied - CORECT
ANSWER- CT raw data
What is common to both a localizer scan and conventional serial scan - CORECT
ANSWER- They both produce digital images
