MODULE 6: PACS Archiving & Peripherals

Question 1

A place where records or documents are preserved

Answer 1

Archive

Question 2

Serves as the new file room & warehouse for all DICOM imaging modalities

Answer 2

Electronic Archive

Question 3

• stores all patient & image data, often on magnetic tape or optical disk
• controls the receipt, storage & distribution of new & historic images
• Fastest growing components in PACS
• Complex arrangement of computers & storage space, consisting of several components, both hardware & software

Answer 3

PACS Archive

Question 4

2 Major Categories of PACS Archive

Answer 4

1. Image Manager or Controller
2. Image Storage or Archive Server

Question 5

• contains the master database of everything that is in the archive
• contains the receipt, retrieval, & distribution of images its stores & controls all the DICOM processes running within the archive
• Contains DICOM header information, such as the patient name, identification number, examination date, ordering physician and location

Answer 5

Image Manager/Controller

Question 6

True or False:

Image Manager/Controller plays a key role in populating image formation into the Hospital Electronic Medical Record (EMR)

Answer 6

True

Question 7

A specialized language for updating, deleting and requesting information from databases

Answer 7

Structured Query Language

Question 8

• Consists of the physical storage device of the archive system
• Consists of two or three tiers of storage

Answer 8

Image Storage/Archive Server

Question 9

Is a level, layer, or division of something

Answer 9

Tier

Question 10

Most PACS archive systems are set up with?

Answer 10

short-term tier and long-term tier

Question 11

Being online or available very quickly, 3-5 seconds

Answer 11

Short-Term

Question 12

Means near-line, images that must be retrieved from a tape or disk storage device, 1-5 minutes & brought to a Redundant Array of Independent (Inexpensive) Disks (RAID)

Answer 12

Long-Term Tier

Question 13

What does RAID stand for?

Answer 13

RAID - Redundant Array of Independent (Inexpensive) Disks

Question 14

• Commonly a RAID

Answer 14

Short-Term Storage

Question 15

Composed of several magnetic disks or hard drives that are linked together in an array

Answer 15

RAID

Question 16

When was RAID created?

Answer 16

1998

Question 17

RAID was created by?

Answer 17

David Patterson, Garth Gibson, and Randy Katz

Question 18

How many levels of RAID are there?

Answer 18

initially 5 levels but now there are 11 levels which are combinations of the first 5 levels.

Question 19

• Most hospitals use RAID storage for both their short-term and their ________

Answer 19

Long-Term Storage/Archive

Question 20

5 Types of Optical Disks

Answer 20

1. Magneto-optical Disk
2. Digital Versatile Disk
3. Ultra Density Optical Disk
4. Tape
5. Magnetic Disk

Question 21

• Very similar to a compact disk (CD) or digital versatile disk (DVD) in that it is read optically with a laser, but the disk itself is housed within a plastic cartridge
• More reliable than some of the other long-term storage options
• Disk are robust and can withstand many years of reading

Answer 21

Magneto-Optical Disk

Question 22

• 1st introduced for use in video
• Have a much higher capacity than CD
• Holds up to 17 GB compared to CD 650 MB
• Least expensive method for long-term archiving per gigabyte

Answer 22

Digital Versatile Disk

Question 23

• New generation of Magneto-Optical Disk
• Uses blue laser technology in its Read & Write activities
• Cost less than MODs

Answer 23

Ultra Density Optical Disk

Question 24

• Tape libraries provide the greatest scalability of the long-term archive options
• Hundreds of terabytes to even a petabyte
• Fairly low-cost archive medium that comes in various sizes

Answer 24

Tape

Question 25

3 types of Magnetic Disk

Answer 25

1. Linear Tape Open (LTO) = open-format technology- multiple sources
2. Digital Linear Tape (DLT)
3. Advanced Intelligent Tape (AIT)