MODULE 6: PACS Archiving & Peripherals Flashcards
A place where records or documents are preserved
Archive
Serves as the new file room & warehouse for all DICOM imaging modalities
Electronic Archive
- 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
PACS Archive
2 Major Categories of PACS Archive
- Image Manager or Controller
- Image Storage or Archive Server
- 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
Image Manager/Controller
True or False:
Image Manager/Controller plays a key role in populating image formation into the Hospital Electronic Medical Record (EMR)
True
A specialized language for updating, deleting and requesting information from databases
Structured Query Language
- Consists of the physical storage device of the archive system
- Consists of two or three tiers of storage
Image Storage/Archive Server
Is a level, layer, or division of something
Tier
Most PACS archive systems are set up with?
short-term tier and long-term tier
Being online or available very quickly, 3-5 seconds
Short-Term
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)
Long-Term Tier
What does RAID stand for?
RAID - Redundant Array of Independent (Inexpensive) Disks
- Commonly a RAID
Short-Term Storage
Composed of several magnetic disks or hard drives that are linked together in an array
RAID
When was RAID created?
1998
RAID was created by?
David Patterson, Garth Gibson, and Randy Katz
How many levels of RAID are there?
initially 5 levels but now there are 11 levels which are combinations of the first 5 levels.
- Most hospitals use RAID storage for both their short-term and their ________
Long-Term Storage/Archive
5 Types of Optical Disks
- Magneto-optical Disk
- Digital Versatile Disk
- Ultra Density Optical Disk
- Tape
- Magnetic Disk
- 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
Magneto-Optical Disk
- 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
Digital Versatile Disk
- New generation of Magneto-Optical Disk
- Uses blue laser technology in its Read & Write activities
- Cost less than MODs
Ultra Density Optical Disk
- 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
Tape
3 types of Magnetic Disk
- Linear Tape Open (LTO) = open-format technology- multiple sources
- Digital Linear Tape (DLT)
- Advanced Intelligent Tape (AIT)
