RADR 2205 PRI II - Comprehensive Review

A periodic backup of archived files

What type of artifact is this?

The light field/x-ray field congruence must be within ____ of the SID

is a preprocessing software correction that is performed to equalize the response of each pixel to a uniform x-ray beam.

The ·Control panel must indicate when the tube is energized, with light and sound

Pulsed Fluoroscopy is intermittent radiation with high mA values and reduces exposure to patients and personnel

The goal of IHE is to improve the interoperability of healthcare information systems by promoting established standards

Level 2 QC is:

Pulsed Fluoroscopy is constant radiation exposure and can produce images with quantum mottle and low SNR

A universally accepted standard for exchanging medical imaging via display workstations, archive, & imaging modalities

What should the exposure rate above the tower not exceed when the tower is at maximum SID with shutters fully open?

The input phosphor of an image intensifier tube converts a(n) _____ image into a(n) _____ image.

What is Health Level 7 (HL7)'s purpose?

Benefits of digital PACS images do not generally include

When testing AEC detectors, the detectors must produce pixel brightness within ___ of each other

This level of quality uses statistical data to measure outcomes & considers all factors that can influence them

Maximum variance for mAs Reciprocity is within ____

CQI targets the process in which employees operate, a process is defined as:

A display workstation is:

What caution should be taken regarding the overuse of postprocessing functions?

Level 3 QC is labeled as:

First person to systematically collect and analyze patient outcomes and recommended changes based on those observations

The xray tube must be mounted so that the central ray exits the housing to within ____ degree of perpendicular.

Which term describes the following

__ is the Ability of imaging system to display events occurring close together in time as separate events

What two methods are used for measure image brightness?

Brightness and image contrast in digital imaging can be influenced by,

This is an advantage of digital image storage:

The minimum filtration required for general-purpose radiographic systems is _____ mm Al.

In mobile fluoroscopy (C-Arm), it is best practice to orient the tube in this fashion: (select 2)

Components of PACS include: Display workstations, Storage archive, ________, __________

Which devices can be used as a sensor for AEC units

The window width setting in a digital imaging system is used to manipulate which of the following values

Which level of QC is performed by the technologist and requires no special training?

PACS stores what type of image data

For a xray unit operating at 80 kVp, _____ mm Al is the accepted HVL

In a DR flat panel, the DEL (detector element) size determines which of the following:

Collimation systems equipped with positive beam limitation must be accurate to within ____ of the SID

A pictorial representation of a frequency distribution

What type of artifact is this?

A computer ___ connects 3 or more computers that share resources and information

Which is the proper acronym for: Digital Imaging and Communications in Medicine

The system's ability to produce a quality radiograph despite minor errors in technical factors

Patient motion during exposure results in ___ artifact

Most performance testing performed with gas-filled chamber detectors. The MOST often type of detector used is the ____

Which of the following are ADVANTAGES of Repeat Analysis:

Image file size is the product of the ________ and the grayscale bit depth of the image

ensures the x-ray generator produces the same intensity of radiation each time the same set of technical factors is used

Detective quantum efficiency (DQE) is a measure of which of the following?

The DICOM image header does not specify an image’s

What does MIMPS stand for?

Which type of testing requires fluoro-ing different thicknesses of material and seeing if brightness level is constant

What type of artifact is this?

In fluoroscopic units, the heat sensor alarm should activated when _________% of maximum heat is achieved.

What is the purpose of the DICOM standard?

an Xray unit's timer must be within _____% accuracy for exposures less then 10 ms

Which level of QC is performed by the technologist and requires special training?

When performing quality control tests on grids, the common tests are:

What is the term for: the average set of observations

The backup system for an AEC should terminate the exposure at ___ second(s) or ___ mAs, whichever comes firs

Continuing Quality Improvement involves all employees

When testing the kVp, the actual kVp produced must be within ____ of the indicator on the control panel

This is a test tool for focal spot size

What type of data is described as being measurable and focused on numbers and frequencies?

If the tube type intensifier is in the presence of a strong magnetic field this type of distortion will appear

Which type of test tool may be used to demonstrate pincushion distortion?

In statistics, a sample is ___

Distribution of tissue densities and/or physiologic changes that are present in the anatomic part during the study

If a CR receptor hasn't been used for 48hrs, it should be inserted into the processor for erasure

Minimum source to skin distance for mobile fluoroscopic units is:

This is the type of quality is based the customer’s perception of the product or service.

In digital imaging, as the size of the image matrix increases,

What artifact will not interfere with an accurate diagnosis/interpretation of an image

______ represent a more comprehensive digital version of a patient's health information compared to _______

What do you do when there is quantum mottle on the fluoroscopic image?

Which type of fluoroscopic QC test involves visualizing a MINIMUM mesh size on an image?

What is the reason for evaluating focal spot size & detecting any blooming during QC checks of an X-ray tube?

What artifact is this?

_ compression is not reversible & can introduce some degree of data loss but can compress data size from 5 to 50 times

Which of the following terms is the unit most commonly used to measure luminance?

______ covers a large geographical area, functions at a slower rate, and support teleradiology.

____ is a device that emits electrons

Digital images are made of ____________, arranged in a ___________.

The maximum variation coefficient for reproducibility of x-ray generators is:

This is the quality level expected by the customer; influenced by word of mouth from others

__ is categorized by use. Uses can be primary reading stations, QC stations, review stations for referring physicians

The process of remote transmission and viewing of medical images is known as __________.

Fewer than _____distinct collimated margins may result in an image artifact (histogram error).

Which of the following can occur as a result of a double set of grid lines?

Proper collimation and ______________ prevent histogram errors that can lead to artifacts.

The range between the largest signal intensity, divided by the smallest signal value that a system can process/display

What type of artifact is this?

This technique allows the transmission of large amounts of image data to remote locations (telerad) for interpretation

______________ contains patient imaging history, procedure scheduling information and the radiologists report.

The central part of PACS; houses all historic and current medical image data being generated in a healthcare enterprise

X-ray intensity of a beam is decreased by 50% when 4 mm aluminum equivelant filtration is added. This describes: 

What is a Vendor Neutral Archive, in the context of medical imaging?

Level 1 QC is Noninvasive and simple

___ customers come from outside the healthcare organization