Question 1

The image at the output screen of the image intensifier tube is far too small and too bright to be observed directly by a(n)____________________.

Accepted Answer

The answer of The image at the output screen of...

Question 2

The ____________________ is a high-frequency generator and can provide the high mA values used in digital fluoroscopy, as opposed to the low mA values typical of conventional fluoroscopy.

Accepted Answer

The answer of The ____________________ is a high-frequency generator and...

Question 3

The image intensifier tube has been developed to replace the conventional fluorescent screen of the early ____________________.

Accepted Answer

The answer of The image intensifier tube has been developed...

Question 4

The energy subtraction operation is based on subtraction of images taken at different ___________________.

Accepted Answer

The answer of The energy subtraction operation is based on...

Question 5

At the heart of a digital fluoroscopy imaging system is a(n)____________________ computer, a minicomputer system capable of receiving dynamic digital data from the ADC and processing it quickly for image display and subsequent storage.

Accepted Answer

The answer of At the heart of a digital fluoroscopy...

Question 6

A pre-contrast image, referred to as a(n)____________________ image, is first obtained and post-contrast images are then digitally subtracted from the mask image.

Accepted Answer

The answer of A pre-contrast image, referred to as a(n)____________________...

Question 7

____________________ subtraction involves the digital subtraction of images in time.

Accepted Answer

The answer of ____________________ subtraction involves the digital subtraction of...

Question 8

Digital fluoroscopy can be applied to both gastrointestinal (GI)tract imaging and DSA, and the image ____________________ operations are specific to each application.

Accepted Answer

The answer of Digital fluoroscopy can be applied to both...

Question 9

In the case of ____________________ scanning, 262.5 odd lines (one TV field)are first scanned, followed by 262.5 even lines (one TV field).

Accepted Answer

The answer of In the case of ____________________ scanning, 262.5...

Question 10

A digital image is made up of a matrix of pixels in which each pixel is assigned a number and each number corresponds to a(n)____________________.

Accepted Answer

The answer of A digital image is made up of...

Quiz 6: Digital Fluoroscopy