Question 1

Which of the following are considered PACS architectures?
1) Distributed system
2) Client/server-based system
3) Web-based system

Accepted Answer

All three options, distributed system, client/server-based system, and web-based system, are considered PACS (Picture Archiving and Communication System) architectures.

Question 2

Which of the following would be considered disadvantages of a client/server-based system?
1) The archive is considered a single point of failure.
2) The system depends on the network.
3) Each workstation has a different worklist.

Accepted Answer

1) The archive being a single point of failure means that if it fails, the whole system will be affected.
2) Since the system is client/server-based, it is dependent on the network, meaning that if anything happens to the network, the system will be affected.
3) Each workstation having a different worklist can lead to confusion and inefficiency.

Question 3

Which of the following would be considered advantages of a client/server-based system?
1) Any image can be seen anywhere without interventions.
2) Even if the archive goes down, images can still be seen at all workstations.
3) Only one person can open a study with the intent to read it, and others will be told that the study is being read by someone else.

Accepted Answer

In a client/server-based system, images can be accessed anywhere without interventions, and the system can manage study access to prevent conflicts. However, if the archive goes down, images typically cannot be accessed.

Question 4

Which term best describes a basic picture element on a display?

Accepted Answer

A pixel is the smallest unit of a digital image or graphic. It is the basic picture element that makes up an image on a display.

Question 5

If the number of ______ increase(s) on a monitor, resolution ______.

Accepted Answer

As the number of pixels increase, the resolution improves. This is because each additional pixel adds more detail and sharpness to the image displayed on the monitor.

Question 6

Which of the following would be considered disadvantages of a distributed system?
1) There is a heavy reliance that the images are being sent to the correct locations.
2) The archive is considered a single point of failure.
3) Each workstation has a different worklist.

Accepted Answer

In a distributed system, there is a reliance on correct data routing (1) and different workstations may have different worklists (3), which can complicate management and consistency. However, the archive being a single point of failure (2) is more characteristic of centralized systems, not distributed ones.

Question 7

The number of pixels contained on a display is known as:

Accepted Answer

The number of pixels on a display is referred to as its resolution. A matrix is a grid of pixels or dots. A pixel is the smallest element in a digital image. Dot pitch refers to the distance between pixels on a display.

Question 8

Any computer that a health care worker uses to view a digital image is a(n):

Accepted Answer

A display workstation is a computer that is specifically designed for viewing medical images such as X-rays, MRIs, and CT scans. It has high-resolution monitors, specialized software, and a fast processing speed to enable quick and accurate diagnosis by healthcare workers. Archives, web servers, and image managers are all necessary components of a medical imaging system, but they do not perform the primary function of displaying images to medical professionals.

Question 9

In which system architecture do the acquisition modalities send their images directly to a designated workstation?

Accepted Answer

The answer of In which system architecture do the acquisition...

Question 10

A PACS consists of:
1) image acquisition.
2) display workstation.
3) archive servers.

Accepted Answer

A PACS (Picture Archiving and Communication System) comprises three basic components: 1) image acquisition, 2) display workstation, and 3) archive servers. Therefore, the correct option is D, which includes all three components.

Question 11

Which of the following would be considered advantages of a distributed system?
1) Any images can be seen anywhere without any interventions.
2) Even if the archive goes down, images can still be seen at all workstations.
3) The system is less dependent on the network for its speed.

Accepted Answer

Advantages of a distributed system include the ability to maintain accessibility and functionality even if one component (such as an archive) goes down, as well as increased speed due to reduced reliance on the network. Option 1 alone does not necessarily indicate a specific advantage of a distributed system, as it could be achieved through other means. Option 2 is a clear advantage of a distributed system, while Option 3 is partially true but not a distinct advantage on its own. Therefore, the best choice is C: 2 and 3.

Question 12

The acronym PACS stands for ______ system.

Accepted Answer

PACS stands for Picture Archival and Communication system. It is a medical imaging technology that provides economical storage and convenient access to images from multiple modalities.

Question 13

Which part of the PACS houses all of the historic digital image data along with the current digital data being generated by the modalities?

Accepted Answer

The archive is the part of the PACS that stores all of the digital image data, both historic and current, generated by the modalities. The display workstation is used for viewing images, the file room is a physical storage area for film or older records, and the review workstation is used for analyzing and interpreting images.

Question 14

A universally accepted standard for exchanging medical imaging via a networked set of display workstations, archive, and imaging modalities is:

Accepted Answer

DICOM (Digital Imaging and Communications in Medicine) is a widely accepted standard for exchanging medical imaging data across different systems and networks. HIPAA and HL-7 are also important standards in healthcare, but they do not specifically address the exchange of medical images.

Question 15

Reading images on a computer screen is known as ______ reporting.

Accepted Answer

Soft copy is the term used for reading images on a computer screen. Hard copy refers to printed copies of documents or images. Therefore, option A is the correct answer. Option C is not relevant as it does not relate to the question, and option D is incorrect because hard copy is not the correct term for reading images on a computer screen.

Question 16

Which is the most interactive part of a PACS?

Accepted Answer

Display workstation is the most interactive part of a PACS as it allows radiologists and other medical professionals to view, manipulate and analyze medical images. It provides features like zooming, panning, windowing, and measuring image characteristics such as tissue density, size and shape. The other parts, like archive, image manager and web server are important components of a PACS but do not provide the same level of interactivity.

Question 17

What term is used to describe the reading of images outside of the hospital walls, generally at home or in remote locations?

Accepted Answer

Teleradiology is the term used to describe the reading of images outside of the hospital walls, generally at home or in remote locations. This technology allows radiologists to interpret medical images and provide diagnostic reports from any location.

Question 18

The acronym RIS stands for ______ system.

Accepted Answer

RIS stands for Radiology Information System, which is a software system that manages medical imagery and associated data.

Question 19

In which system architecture do the images and application software reside on a central server?

Accepted Answer

The answer of In which system architecture do the images...

Question 20

What factors might be used when determining the best type of monitor for each workstation?
1) Resolution
2) Size
3) Monitor orientation

Accepted Answer

The resolution and size of the monitor are important factors to consider when determining the best type of monitor for each workstation. A higher resolution provides sharper images, making it easier to read text and view images. The size of the monitor should be adequate for the task at hand, without being too large or too small. Additionally, the monitor orientation, whether it is in landscape or portrait mode, can affect productivity and comfort. Therefore, all three factors (resolution, size, and orientation) should be considered when determining the best type of monitor for each workstation.

Quiz 9: Pacs Fundamentals

Which of the following are considered PACS architectures? 1) Distributed system 2) Client/server-based system 3) Web-based system

Which of the following would be considered disadvantages of a client/server-based system? 1) The archive is considered a single point of failure. 2) The system depends on the network. 3) Each workstation has a different worklist.

Which term best describes a basic picture element on a display?

If the number of increase(s) on a monitor, resolution .

Which of the following would be considered disadvantages of a distributed system? 1) There is a heavy reliance that the images are being sent to the correct locations. 2) The archive is considered a single point of failure. 3) Each workstation has a different worklist.