ANGIO - DSA UNIT

Question 1

This changes the incoming line voltage to what is needed to power the x-ray tub

Answer 1

Generator

Question 2

The generator must be a ____-phase or high frequency ___-pulse unit

Answer 2

3, 12

Question 3

Whats the minimum mA range of the generator?

Answer 3

at least 1000 mA

Question 4

What should be the withstanding heat of the x-ray tube

Answer 4

400k - 800k HU

Question 5

Why should the xray tube be made of a high-speed rotating anode?

Answer 5

for better heat dissipation

Question 6

What is the advantage of using a small focal spot?

Answer 6

higher resolution

Question 7

who introduced the image intensifier and when was it introduced?

Answer 7

Philips Co. 1955

Question 8

It is a highly piece of equipment that uses x-rays & produces a live image feed w/c is displayed on T.V

Answer 8

Image Intensifier

Question 9

This part of the angiographic equipment must be ceiling mounted

Answer 9

tv and camera

Question 10

What is the standard resolution for the tv and camera?

Answer 10

525 lines/frame

Question 11

what should be the signal to noise ratio of the tv and camera?

Answer 11

1000;1

Question 12

defined as the ratio of a signal power to the noise power corrupting the signal

Answer 12

Signal to noise ratio

Question 13

measurement of frequency (rate) at w/c an imaging device produces unique consecutive image

Answer 13

Frame rate/ frame frequency

Question 14

It converts the analog image to digital format

Answer 14

Analog to Digital Converter

Question 15

This should allow movement of the patient without being repositioned

Answer 15

Angiographic table

Question 16

This type of conversion initially converts the X-rays to light with a CsI scintillator or some other type of scintillator and then converts this light to electrical charges with amorphous silicon photodiodes.

Answer 16

Indirect conversion FPD