What is SOP class in DICOM?

What is SOP class in DICOM?

A SOP Class is defined as a combination of one or more DICOM Service Element (DIMSE), which are commands, and an Object, which is defined by an Information Object Definition (IOD). Examples of Service Elements are Store, Get, Find, Move, etc.

What does SOP class mean?

Service Object Pair (SOP Class) A class defines a certain functionality consisting of a combination of a Service and an Object, which make up the Pair – e.g. CT Image Storage is an example of an SOP Class. Objects in DICOM are called Information Objects.

What is SCU and SCP in DICOM?

DICOM is based on two-way communication, which means that there is always one device that sends and one that receives. Or in DICOM terminology, one device that invokes an operation and the other one that performs it. In DICOM these roles are called Service Class User (SCU) and Service Class Provider (SCP).

What is SOP instance?

In DICOM, a SOP Instance (e.g. a specific CT image) is the instance of the Class, e.g. a CT Image IOD. Unique Identifiers (UIDs) are used to identify everything in DICOM, from the SOP classes to the individual objects. They are registered by a standards organization to prevent duplication.

What is C-store in DICOM?

C-STORE. The most basic DICOM operation, otherwise known as “DICOM Push” allows an SCU to send a Composite Instance to an SCP. For instance, it is used to send images from a modality to PACS or create the delivery mechanism for C-MOVE.

What is a C-find?

A C-FIND service conveys the following semantics: The SCU requests that the SCP perform a match for the Matching Keys and return values for the Return Keys that have been specified in the Identifier of the request, against the Relevant Patient Information that the SCP possesses.

What is instance number in DICOM?

Instance Number. 1. A number that identifies this Waveform. Waveform Identification Module Attributes. (0020,0013)

What is IOD in DICOM?

An Information Object Definition (IOD) is an object-oriented abstract data model used to specify information about Real-World Objects. An IOD provides communicating Application Entities with a common view of the information to be exchanged. Figure 6-1. Major Structures of DICOM Information Model.

What is C echo?

The purpose of the C-ECHO command is to basically ‘ping’ the SCP to confirm that it is active and accepting associations. This utility will send the DICOM Echo to the specified remote Application Entity. If is not specified, the DICOM default port 104 is assumed.

What is slice location?

Slice Location (0020,1041) is defined as the relative position of the image plane expressed in mm. This information is relative to an unspecified implementation specific reference point.

What is an information object?

An information object is a configuration item that displays information in an organized form. The purpose of the information object is to logically describe the type of data that is exchanged between the application and the database. After information objects are created, they are mapped to business applications.