Fluoroscopy

Question 1

What is the purpose of fluoroscopy?

Answer 1

To obtain real time images of moving body parts and internal structures of patients

Question 2

What are the two types of stationary fluroscopy tubes?

Answer 2

1. Tube located above the table
2. Tube located below the table

Question 3

What is the role of the II or FPD in fluoroscopy?

Answer 3

To convert the x ray intenisty beam pattern (remnant beam) into a visible image which will then be displayed on a monitor

Question 4

Where is the tube located? What type of fluoroscopy is this?

Answer 4

-Under the table
-Conventional fluoro

Question 5

What is conventional floro?

Answer 5

Using an image intensifier

Question 6

What is digital floro?

Answer 6

Using a flat panel detector

Question 7

Where is the tube located? What type of floro is this?

Answer 7

1. Under the table
2. Digital floro

Question 8

Where is the tube located? What type of floro is this?

Answer 8

-Above the table
-Image intensifier (conventional)

Question 9

Where is the tube located? What type of floro is this?

Answer 9

-Above the table
-Digital floro

Question 10

How far can the floro table move in the fowler position?

Answer 10

Up to 90 degees

Question 11

How far can the floro tube move in the trandelanberg position?

Answer 11

Up to 30 degrees

Question 12

What type of floro machine is this?

Answer 12

Mobile C arm with an image intensifier

Question 13

What is a C-arm?

Answer 13

-A semi ciruclar C shaped arm with an x ray source fixed to one end and II to the other
-Cannot change the SID

Question 14

What range of voltage does the mobile C arms use?

Answer 14

40-110 kV

Question 15

True or false?

The image intensifier on mobile C arms aplifies high intensity x rays, thereby reducing the amount of radiation used.

Answer 15

False; the image intensifier on mobile C arms aplifies low intensity x rays, thereby reducing the amount of radiation used.

Question 16

Define image intensification:

Answer 16

The process whereby a reduced amount of radiation is used to produce an image

Question 17

When was the C arm introduced?

Answer 17

1960s

Question 18

What are the 2 types of C arms?

Answer 18

1. Mobile
2. Stationary

Question 19

True or false

C arms can move freely

Answer 19

False, although they can move in all 3 directions, the most common problem occurs when C arm used in the lateral position since the II cannot rotate byond the horizontal position

Question 20

What are the different movements that a C arm can do?

Answer 20

1. Vertical
2. Swivel
3. Horizontal
4. Rotation

Question 21

True or false?

The C arm can rotate around the AP and lateral views but most cannot rotae more than the horizontal position

Answer 21

True

Question 22

How is the x ray beam positioned in relation to the anatomy for C arms?

Answer 22

Perpendicular

Question 23

Can we collimate using a floro machine?

Answer 23

Yes

Question 24

What is the last image hold?

Answer 24

There are 2 monitors; one for as we are taking the iamge, and one that shows the last image taken when we stop the exposure

Question 25

What is pulse rate mode?

Answer 25

System preforming quick pusles of image to reduce dose