4 Symbols and Abbreviations
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# 4 Symbols and Abbreviations

The following symbols and abbreviations are used in this Part of the Standard.

ACR

  American College of Radiology

ASCII

  American Standard Code for Information Interchange

AE

  Application Entity

ANSI

  American National Standards Institute

BEV

  Beam's-eye view

Brachy

  Brachytherapy

BRHC

  Bottom Right Hand Corner

CC

  Counter-clockwise

CDA

  Clinical Document Architecture (HL7)

CEN TC251

  Comité Européen de Normalisation - Technical Committee 251 - Medical Informatics

CCIR

  Consultative Committee, International Radio

Chest CAD

  Computer-Aided Detection and/or Computer-Aided Diagnosis for chest radiography

CTV

  Clinical target volume

CW

  Clockwise

DICOM

  Digital Imaging and Communications in Medicine

DIMSE

  DICOM Message Service Element

DIMSE-C

  DICOM Message Service Element-Composite

DIMSE-N

  DICOM Message Service Element-Normalized

DRR

  Digitally-reconstructed radiograph

DVH

  Dose-volume histogram

EPI

  Electronic Portal Image

EPID

  Electronic Portal Imaging Device

GTV

  Gross tumor volume

Gy

  Gray

HISPP

  Healthcare Information Standards Planning Panel

HL7

  Health Level 7

HMD

  Hierarchical Message Description (HL7)

ICRU

  International Commission on Radiation Units

IE

  Information Entity

IEC

  International Electrotechnical Commission

IEEE

  Institute of Electrical and Electronics Engineers

IHE

  Integrating the Healthcare Enterprise

II

  Instance Identifier (HL7)

IOD

  Information Object Definition

ISO

  International Standards Organization

ITU-T

  International Telecommunications Union - Telecommunications Standardization Sector

IVOCT

  Intravascular Optical Coherence Tomography

JIRA

  Japan Medical Imaging and Radiological Systems Industries Association

JPIP

  JPEG 2000 Interactive Protocol

LUT

  Lookup Table

MAC

  Message Authentication Code

Mammography CAD

  Computer-Aided Detection and/or Computer-Aided Diagnosis for Mammography

MeV

  Mega electron Volt

MLC

  Multileaf (multi-element) collimator

MSDS

  Healthcare Message Standard Developers Sub-Committee

MU

  Monitor unit

MV

  Megavolt

NaN

  Not a Number (see IEEE 754)

NEMA

  National Electrical Manufacturers Association

OID

  Object Identifier (ISO 8824)

OPT

  Ophthalmic Tomography

OSI

  Open Systems Interconnection

PDF

  Portable Document Format

PTV

  Planning target volume

R&V

  Record and verify

RCS

  Reference Coordinate System

ROI

  Region of interest

RT

  Radiotherapy

SAD

  Source-axis distance

SCP

  Service Class Provider

SCTP

  Structured Clinical Trial Protocol (HL7)

SCU

  Service Class User

SD

  Structured Documents (HL7)

SID

  Source Image Receptor Distance

SOD

  Source Object Distance

SOP

  Service-Object Pair

SPL

  Structured Product Labeling (HL7)

SR

  Structured Reporting

SSD

  Source-skin distance

TLHC

  Top Left Hand Corner

UID

  Unique Identifier

UUID

  Universal Unique Identifier (ISO/IEC 11578)

XDS

  Cross-Enterprise Document Sharing Profile (IHE)

XML

  Extensible Markup Language

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