Exam 1: Introduction to Digital Radiography and Pacs

The ______ converts x-ray energy directly to a digital electrical signal.

In conventional radiography film processing, the sensitivity speck has this electrical charge.

X-ray energy related to direct capture DR will stimulate a ______, which eventually is changed into an electrical signal.

Light exposing the film is in direct proportion to the amount and energy of the incident photon upon the screen.

Compared with a 90-second processing time found in conventional radiography, image acquisition with DR has now been reduced to ______.

In a digital radiography system, which of the following are needed to produce a radiographic image?

Film and intensifying screens are primarily used in ______.

The invention of computed tomography is heralded as ______.

Storage phosphor plates are similar to ______.

One of the early goals related to the development of PACS was to ______.

Teleradiography incorporated ______ to produce radiographic images.

In reference to CR, to release the latent image, which of the following devices is scanned over the phosphor plate?

Technologist efficiency ratings are generally the same when comparing conventional radiography to ______ radiography.

Computed radiography acquires an image through ______.

The first commercial CT scanners could image the ______.

Which modality was the first to use the principle of digital imaging?

The earliest computed tomography of the head took several hours to acquire a single slice of information.

A look-up table maps ______.

DICOM is a standard that allows imaging modalities and PACS to communicate in the same language.

Intensifying screens ______.