QUESTIONS WITH ANSWERS GRADED A+
◉ Which system component converts the projection attenuation
data into the proper digital form for the array procesor?
a. detector
b. photodiode
c. analog-to-digital converter
d. host computer. Answer: C
◉ 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 radiologists. Answer: A
◉ Which of the following is NOT a part of the CT tube?
a. tungsten target
b. collimator
c. rotating anode
d. filament. Answer: B
, ◉ Which of the following is FALSE regarding CT systems?
1. they are limited to non-oblique transverse scanning
2. they cannot generate a straight coronal or sagittal image
3. they have no moving parts
a. 1 only
b. 2 only
c. 3 only
d 1, 2 & 3. Answer: D
◉ X-rays are used in CT because:
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 technologist are received by the:
a. array processor
b. operator's console