All correct answers are in RED text and Italics.
Just click on the numbers and you will go to that
01/16/06 Return to the top of the page
"Computed Tomography by Stewart C. Bushong"
The First CT Image was demonstrated by? (ch 1. Q 22. pg 7)
a. Alan Cormack
b. Raymond Damadian
c. Geodfrey Houndsfield
d. Frank Lauterbur
e. Larry Rothenberg
01/23/06 Return to the top of the page
"Computed Tomography by Stewart C. Bushong"
Which of the following componets must be on the rotating part of the CT gantry?(ch 3. Q 57. pg 41)
a. Array Processor
b. Central Processing Unit
c. Detector Array
d. Reconstruction Kernal
e. X-Ray Tube
01/30/06 Return to the top of the page
"Computed Tomography by Stewart C. Bushong"
Which of the following would be an example of multiplanar reconstruction?(ch 4. Q 21. pg 63)
a. displayed field of view [DFOV]
b. Houndsfeild Units [HU]
c. Quantitive CT [QCT]
d. Region of interest [ROI]
e. shaded surface display. [SSD]
02/06/06 Return to the top of the page
"Registry Review in Computed Tomography by Daniel N. DeMaio"
A pixel may defined as?(ch 2. Q 107. pg 69)
a. The portion of the CRT displaying the image
b. a volume element
c. a picture element
d. a miniture image
02/13/06 Return to the top of the page
This Week's Question is taken from:
"Registry Review in Computed Tomography by Daniel N. DeMaio"
Often seen in pediatric patients, a specific type of renal mass arising from immature kidney cells is referred to as?(ch 3. Q 31. pg 86)
a. Krukenberg's tumor
b. Wilm's tumor (also refered to as Nephroblastoma and is found between ages 1-5)
c. von Hippel-Lindau disease
d. Ewing's sarcoma
02/20/06 Return to the top of the page
"Lippincott's Computed Tomography Review"
Which of the following results from a fracture in the temporal region of the skull with associated tearing of the middle meningeal artery. (Imaging Proceedures. Q 111. pg 36)
a. subdural hematoma
b. epidural hematoma ~~ An epidural hematoma develops between the inner table of the bones of the skull and the dura. It is a direct result of a skull fracture in the temporal bone region of the skull with associated tearing of the middle meningeal artery.
c. alteriovenus malformation
d. subaracchnoid hematoma
02/27/06 Return to the top of the page
" Computed Tomography by Stewart C Bushong"
Which of the following in increased with increasing spiral CT pitch? (ch 5. Q 10. pg 86)
a. Axial Resolution
b. Contrast Resolution
c. Effective Slice Thickness
d. Image Artifacts
e. Spatial Resolution
03/06/06 Return to the top of the page
"Registry Review in Computed Tomography by Daniel N. DeMaio"
Which of the following factors has no measurable effect on spatial resolution? ( Physics and Instrumentation. Q 113. pg 112)
a. Focal Spot Size
b. kVp ~~The spatial resolution of a CT image is dependent upon several factors, including focal spot size, detector size and spacing, field of view, pixil demension, matrix size, and detector sampling rate.
c. Detector Sampling Frequency
d. Matrix Size
03/13/06 Return to the top of the page
"Lippincott's Computed Tomography Review"
Which of the following terms describes the fluctuation of CT numbers from point to point in the image for a scan of uniform material, such as water? (Physics and Instrumentation/ Image Quality. Q 136. pg 233)
a. Contrast
b. Noise - In CT is the fluctuation of CT Numbers from point to point in the image for a scan of uniform material, such as water.
c. Detector Sensitivity
d. Linearity
03/20/06 Return to the top of the page
"Lippincott's Computed Tomography Review"
Which of the following would contribute to higher patient doses during a CT scan? (Patient Care. Q 85. pg 29)
1. Multiple scans at a single level
2. low mAs settings
3. high-resolution scans with long scan times
a. 1 & 2 only
b. 1 & 3 only- Multiple scans at a single level and high resolution scans with long scan times would increase patient radiation exposure.
c. 2 & 3 only
d. 1, 2, & 3
08/28/2006Return to the top of the page
"Computed Tomography by Stewart C. Bushong"
One Hundred Heat Units (HU) is equivilant to? (Ch 3/Q9 pg 33)
a. 1 erg.
b. 100 erg.
c. 1 Joule (J).
d. 100 Joule (J)