| Accession Number |
Number usually generated by a radiology information system (RIS), is usually used to correlate the images associated with an examination by an order specified by the RIS. |
| ACR-NEMA |
American College of Radiology-National Electrical Manufacturers' Association |
| ACSE |
Association Control Service Element is a protocol at the application layer of the OSI model, allows the establishment and free association between two Application Entity and determine the application context for this association. Is used along with the standard DICOM Upper Layer Protocol (DUL) Protocol to manage precisely the associations between applications adhering to the standard. |
| Big Endian |
Different computers can use a different byte order to represent the same number made up of several bytes, some systems store numbers starting from the least significant byte (Little Endian) other store numbers starting with the most significant byte first (Big Endian). For example, the first group belong systems such as MS Windows and Mac OS on Intel, the second group belong systems such as Mac OS on a PowerPC processor. |
| Buffer underrun |
Temporary memory of a CD-ROM. Allow to compensate for the small breaks that you can have while you are writing a CD-ROM. |
| Data Element |
Essentially represents the encoding of an attribute of the DICOM files. |
| Data Element Tag |
Ordered pair of hexadecimal numbers such as (gggg, eeee), where gggg is the group number, eeee is the element number belonging to the group. |
| DICOM |
Digital Imaging and Communications in Medicine. |
| DIMSE |
DICOM Message Service Elements is a high-level protocol for exchanging messages, it represents the backbone of the network services DICOM. |
| Element Number |
Four-digit hexadecimal number which is the second part of the data element tag. |
| Group Number |
Four-digit hexadecimal number that represents the first part of the data element tag. |
| HIS/RIS |
Hospital/Radiology Information System. |
| ISO 9660 |
The ISO 9660 file system can be used for CD/DVD media. |
| ISO-OSI |
International Standards Organization Open Systems Interconnection. |
| JPEG Lossless |
Image compression algorithm without information loss belonging to the JPEG standard. |
| JPEG Lossy |
Image compression algorithm with information loss belonging to the JPEG standard. |
| JPEG 2000 Lossless |
Image compression algorithm without information loss belonging to the JPEG standard. |
| JPEG 2000 Lossy |
Image compression algorithm with information loss belonging to the JPEG standard. |
| Modality/Modalities |
Means the hardware / software equipment used to capture the image in digital mode. |
| PDU |
Protocol Data Unit is a unit of information exchanged between two Application Entity. |
| RIS |
A Radiology Information System is used in radiology to manage the flow of data related to patients. The functionality of RIS make it possible to manage the "reporting process", i.e. the series of actions or events leading moving from a patient to the accomplishment reporting, a radiological survey. |
| RLE lossless |
Image compression algorithm without information loss, is an acronym for Run-Length Encoding. |
| Service Class |
A service class is the structured description of a service supported by cooperating DICOM Applications, using the DICOM specific commands to act on a specific class of objects of information. |
| SOP instance UID |
For an image corresponds to the tag (0008,.0018) identifier that uniquely determines the image. |
| Thumbnail |
Preview of a larger image presented in reduced size. |
| Value Representation |
Representation of the value of the element in the DICOM standard (Part PS3.5) is defined as 27 types of fundamental data. |
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