Digital Imaging

An Ultra density optical UDO disk is the new generation magneto optical disk MOD

Automatic rescaling means that the images of produce w/ uniform density and contrast regardless of the amount of exposur

Which of the following is made of soft polymer that protects the back is a cassette

Which of the following topology is a network that has the devices connected to a central hub or switch ?

The phosphor layer in imaging plate is also called

Which of following reduces the network traffic , speeds up the overall network connection and makes the network more eff

Which of the following artifact is caused by incorrect grid alignment?

The amount of tissue included in the image is referred to as

Which of the following types of computers are typically found on a network

The arrangement of pixels in rose and columns is known as

In CCD the amount of electrons produce relative to the incident light from the simulators is called

Smoothing is done by averaging each pixels frequency with surrounding pixel values to remove high frequency noise

Which of the following offers edge enhancement , smoothing , and contrast enhancements on PACS

In a direct conversion x-ray photons are absorbed by the coating material and immediately converted into an

For digital projection imaging Algorithms has more influence on image noise, whereas density is controlled by MAS

Which of the following is/are basic forms of a computer?

Which of the filling contains the master database of everything that is in the archive in PACS

Which of the rolling is the sturdiest wires used and is often found in the network infrastructure thru-out a building

When the signal is reproduce frequencies above the Nyquist frequency cost ___

____ are materials that absorb x-rays resulting in an electrical charge

The more pixels in an image lower the resolution of the image on display monitor

The imaging plates are extremely sensitive to__ And should be released to prevent a build up of background signal

A __ topology is a network in which the devices are connected in a circle

D. I. is any imaging acquisition process that produces an electronic image that can be viewed and manipulated in a 🖥

The KVP values range from__ on most digital protection systems in radiography

Current LTO-3 technology holds ___ GB of uncompressed data on a single tape

PSP & FPD, KVP still influence subject contrast but radiographic contrast is primarily controlled by an image processing

The oldest indirect conversion digital radiography systems use__ to acquire the digital image

Which of the following is the physical or geometric layout of the connected devices on a network?

In PACS , a __ is how seg of images will be displayed on the monitor

The __ contains all of the circuitry for recording and reproducing sound in the PC

What is the first step in any radiology department workflow ?

___Absorbs and reduces static electricity in imaging plate

Which of the following is the file room of the PACs

Direct FPD is when x-rays are detected by photoconductor and converted into an electrical signal

Currently in healthcare each modality and PACS communicates via

The PSP cassette contains an anti-static material that protects the plate against

There are two types of PSP reader : points scan and line skan

____ refers to the way anatomy is oriented on the imaging plate

A computer systems hardware and software infrastructure is also called __

Which of the following are main types of Cd /DVD drivers available in today’s market

What ROI stand for ?

A magneto-optical disk MOD is housed within plastic cartridge and readable optically with a

In which of the following network , each computer is considered equal ?

___ uses glass threads to transmit data on the network

Which of the following is used to correct flaws in the detector

Which of the following layers sends light in the forward direction when released in the cassette reader?

Which of the filling are common PACs architecture

A__ is an computer that can work independently of the network and process and manage its own files

The exposure index refers to the amount of exposure received by the image receptor not by the patient

Brightness or darkness of the screen image is controlled by

The radiologist used which of the following when making a primary diagnosis

___ is the smallest element in a digital image

The QC workstation can also be used by techs for which of the following purposes before begging if exam

A LAN is close by, whereas a WAN expands over a distance

A ___ is any computer that a health care worker uses to view a digital image

Why the LCD monitors are popular in PACS system?

The first PACS were used in early ___

One of the greatest advantages of a PACS is the ability to view the same set of images in multiple locations at once

PSP imaging was first introduced commercially in the United States in 1983 by___ medical

The number of pixels in a display monitor of a computer is known as its __

At least__The plates should be run under and erase cycle to remove background radiation and scatter

Which of the following products are still widely used as long term storage in many hospitals

The two important factors should be considered when selecting PSP imaging cassette: type and size

In medicine one of the first uses of digital imaging was with the introduction of the CT scanner by____ in the 1970s.

Which of the following are most common noises in CCC technology?

The __is the main repository for programs and document on a computer

Most PACS in healthcare system use __operating system

A ___is a programable electronic device that can retrieve, store,and process data

A __ connection is the most common wired connection used between devices today

Which of the following software controls the computer hardware and acts as a bridge between applications and hardware

Sharing the digital image will reduce the exposure to the patient

Biggest disadvantages of tape

Which of the following memory in the computer is used to store information currently being processed within the CPU

A byte is made up of__ bits and is the amount of memory needed to store one alphanumeric character

Film/screen images are recorded in a logarithmic fashion whereas digital image capture is___

In _ the first TFT , flat panel amorphous silicon and amorphous selenium detectors were introduced

Like CCD technology, CMOS image sensors convert light into electrons

RIS stands for radiology information system

The image manager in PACS interfaces with wich of the following?

___ is almost a double exposure of sorts on the imaging plates

Which of the following is a small area network?

Which of the following are advanced workstation functions in PACS

___ refers to the number of great lines per centimeter or lines per inch

___ is the measurement of radiation energy.

Artifacts or any undesirable densities on the processed image other than those caused by fog or scatter radiation

In computers, each 1 and each 0 represents a single unit of data called

Which of the following are motherboards components in computer ?

The data travel along the network using an agreed -on set of rules known as what

In film/screen & digital imaging anything that interferes with the formation of the image is considered Field of View

Which of the following are peripherals of computers

The imaging plate is scanned with a helium laser beam or solidstate laser diodes that produce __light in scanning proc.

A wide area network WAN can expand over which of the following ?

___ refers to the omission of light from the fast for later after stimulation by the relevant light source

The quantum model or quantum noise produces grainy

The image acquisition in PACS is acquired in a ___ format

The difference between the actual exposure and the target exposure is known as the

A graphical representation of a digital image is called

The amount of detail in any image is known as its

A __ is a computer that manages resources for other computers, servers , and networked