NMTCB CT BOARD COMPREHENSIVE EXAM
UPDATED QUESTIONS AND ANSWERS SURE A+
✔✔portions of the small bowel include - ✔✔duodenum
jejunum
ileum
✔✔collimation of the x-ray beam occurs - ✔✔at the x-ray tube, regulating slice thickness
before the detectors, limiting the amount of scatter radiation absorbed
✔✔the mathematical technique allowing the reconstruction of motion-free images from
helically acquired CT data is called - ✔✔interpolation
✔✔abbreviation used to identify a computerized network that stores, retrieves,
communicates, and displays digital images - ✔✔PACS
✔✔a CT image is formed in part by projecting back all of the attenuation values
recorded during data acquisition onto a - ✔✔matrix
✔✔the acquisition of a series of CT images at single anatomic location over a set period
is referred to as - ✔✔cine CT
✔✔a standard CT image reconstructed on a 512x512 matrix has a digital size of
approximately - ✔✔0.5 MB
✔✔the term used to describe the relationship between the linear attenuation coefficient
of an object and the calculated CT numbers is - ✔✔linearity
, ✔✔quality control measurements to test the accuracy of the CT scanner's calibration
should be performed - ✔✔daily
✔✔the 3D technique that includes all of the acquired voxel information in the
reconstructed model with adjustments to its opacity is termed - ✔✔volume rendering
✔✔the process of applying a mathematical filter to remove blurring from the
reconstructed CT image is termed - ✔✔convolution
✔✔the average photon energy of the CT x-ray beam can be increased by -
✔✔increasing filtration
✔✔a solid-state device used to record the light flashes given off by a scintillation crystal
- ✔✔photodiode
✔✔the type of MSCT detector array that contains multiple rows of detector elements,
each of the same length, is called a(n) - ✔✔uniform matrix array
✔✔Segmenting the data acquisition process into separate components of smaller
rotation angles may improve what component of CT image quality? - ✔✔temporal
resolution
✔✔the information included during the 3D reconstruction of a CT scan is controlled by
the - ✔✔threshold setting
✔✔Which cranial nerve would an acoustic neuroma be found on? - ✔✔8th
(Vestibulocochlear nerve)
✔✔Intrathecal injection of contrast places contrast directly into the - ✔✔Subarachnoid
space
✔✔Serum iodine concentration for adequate tissue opacification is - ✔✔2-8 mg/mL
✔✔The Lisfranc joint is the articulation between the - ✔✔Tarsals and metatarsals
✔✔Components of adnexal area of uterus - ✔✔Ovaries and Fallopian tubes
✔✔At what percentage of overlap should CT sections be reconstructed to improve the
quality of MPR images? - ✔✔50%
✔✔Which of the paranasal sinuses is usually the last to develop? - ✔✔Frontal
UPDATED QUESTIONS AND ANSWERS SURE A+
✔✔portions of the small bowel include - ✔✔duodenum
jejunum
ileum
✔✔collimation of the x-ray beam occurs - ✔✔at the x-ray tube, regulating slice thickness
before the detectors, limiting the amount of scatter radiation absorbed
✔✔the mathematical technique allowing the reconstruction of motion-free images from
helically acquired CT data is called - ✔✔interpolation
✔✔abbreviation used to identify a computerized network that stores, retrieves,
communicates, and displays digital images - ✔✔PACS
✔✔a CT image is formed in part by projecting back all of the attenuation values
recorded during data acquisition onto a - ✔✔matrix
✔✔the acquisition of a series of CT images at single anatomic location over a set period
is referred to as - ✔✔cine CT
✔✔a standard CT image reconstructed on a 512x512 matrix has a digital size of
approximately - ✔✔0.5 MB
✔✔the term used to describe the relationship between the linear attenuation coefficient
of an object and the calculated CT numbers is - ✔✔linearity
, ✔✔quality control measurements to test the accuracy of the CT scanner's calibration
should be performed - ✔✔daily
✔✔the 3D technique that includes all of the acquired voxel information in the
reconstructed model with adjustments to its opacity is termed - ✔✔volume rendering
✔✔the process of applying a mathematical filter to remove blurring from the
reconstructed CT image is termed - ✔✔convolution
✔✔the average photon energy of the CT x-ray beam can be increased by -
✔✔increasing filtration
✔✔a solid-state device used to record the light flashes given off by a scintillation crystal
- ✔✔photodiode
✔✔the type of MSCT detector array that contains multiple rows of detector elements,
each of the same length, is called a(n) - ✔✔uniform matrix array
✔✔Segmenting the data acquisition process into separate components of smaller
rotation angles may improve what component of CT image quality? - ✔✔temporal
resolution
✔✔the information included during the 3D reconstruction of a CT scan is controlled by
the - ✔✔threshold setting
✔✔Which cranial nerve would an acoustic neuroma be found on? - ✔✔8th
(Vestibulocochlear nerve)
✔✔Intrathecal injection of contrast places contrast directly into the - ✔✔Subarachnoid
space
✔✔Serum iodine concentration for adequate tissue opacification is - ✔✔2-8 mg/mL
✔✔The Lisfranc joint is the articulation between the - ✔✔Tarsals and metatarsals
✔✔Components of adnexal area of uterus - ✔✔Ovaries and Fallopian tubes
✔✔At what percentage of overlap should CT sections be reconstructed to improve the
quality of MPR images? - ✔✔50%
✔✔Which of the paranasal sinuses is usually the last to develop? - ✔✔Frontal
