Exam 7: Radiographic Imaging

The resolution of an image using thin-film-transistor (TFT)technology is determined by the

Optimum radiographic image quality is a function of proper exposure technique selection.Given the three sets of mAs calculations that follow,all three should yield the same degree of radiographic exposure to a detector. Exposure 1: 200 mA $\times$ 0.05 ms Exposure 2: 100 mA $\times$ 0.10 ms Exposure 3: 400 mA $\times$ 0.025 ms This is known as

The component that intercepts the remnant radiation from a patient and creates the radiographic image is the

Computers and their software programs are essential to the processing of digital image data for digital X-ray images.This software can compensate for wide variances in radiation exposure to produce an image.Sub-optimum or excessive exposure is compensated for through a process referred to as

All of the following are true of computed radiography (CR)except

A direct capture digital radiography detector uses _____ as the receptor material.

The invisible,unprocessed data on an image detector immediately after X-ray exposure forms the _____ image.

The dynamic display of a patient's anatomy using x-radiation is termed

Of all of the energy traveling through the X-ray tube during a radiographic exposure,the largest percentage of this electrical energy is converted to

A very effective method for reducing your exposure to radiation during an exposure is to take advantage of distance.You can reduce your exposure by a factor of nine if you

As you position patients for various radiographic procedures,you will occasionally angle the X-ray tube assembly.This intentional use of tube angles is referred to as

The production of x-radiation that occurs in an X-ray tube requires the movement of negatively charged particles traveling from one side of the tube to the other.This movement of charges must occur in

When radiographic images of patients are created,many exposure variables come into play to produce optimum image quality.Any change in the radiographic image appearance should be the result of

As you perform a portable chest radiograph,the optimal SID of 40 inches is unattainable because of orthopedic supports over the patient.It is necessary for you to shorten the SID to 34 inches.A professional radiographer should do which of the following?

There are four primary image quality factors.They are

An effective measure of actual exposure compared to a target exposure value is the use of a(n)

Bowel gas in the abdomen is an example of a _____ material,with regard to the X-ray beam.

X-ray film imaging has been replaced by

As you process a radiographic image of the abdomen of a small child,you notice a small ring-like object on the image.It appears this object is in the patient's stomach,which is consistent with the examination history.The ring shows on the X-ray image because of its metallic density.This is the result of

The x-radiation that is "left over" and exits the patient to strike the image receptor and create the image is known as _____ radiation.