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DICOM PS3.3 2020a - Information Object Definitions |
B.17 Modality Performed Procedure Step Information Object Definition
B.17.1 IOD Description
A "Modality Performed Procedure Step Information Object Definition" is an abstraction of the information that describes the activities, conditions and results of an imaging procedure performed on a modality. It contains information about the Modality Performed Pro- cedure Step (MPPS) and its relations to other Information Entities of the DICOM real-world model as introduced in this Part.
A Modality Performed Procedure Step is related to the actual imaging procedure carried out at the modality. Other types of Performed ProcedureSteps,e.g.,reportingorimageprocessing,arenotcoveredbytheModalityPerformedProcedureStepIOD.Theinformation gathered includes data about the performance of the procedure itself, and data for billing and material management. The Modality Performed Procedure Step IOD includes general PPS Modules and image acquisition specific ones, such as Image Acquisition Results, and Billing and Material Management.
B.17.2 IOD Modules
Table B.17.2-1 lists the Modules that make up the Modality Performed Procedure Step IOD.
Table B.17.2-1. Modality Performed Procedure Step IOD Modules
Module |
Reference |
Module Description |
SOP Common |
C.12.1 |
Contains SOP common information |
Performed Procedure Step Relationship |
C.4.13 |
References the related SOPs and IEs. |
Performed Procedure Step Information |
C.4.14 |
Includes identifying and status information as well as place |
|
|
and time |
Image Acquisition Results |
C.4.15 |
IdentifiesSeriesandImagesrelatedtothisPPSandspecific |
|
|
image acquisition conditions. |
Billing and Material Management Codes |
C.4.17 |
Contains codes for billing and material management. |
Note
The Radiation Dose Module has been retired. See PS3.3 2017c.
B.18 Presentation LUT Information Object Definition
B.18.1 IOD Description
The Presentation LUT Information Object is an abstraction of a Presentation LUT. The objective of the Presentation LUT is to realize image display tailored for specific modalities, applications, and user preferences. It is used to prepare image pixel data for display on devices that conform to the Grayscale Standard Display Function defined in PS3.14.
The output of the Presentation LUT is Presentation Values (P-Values). P-Values are approximately related to human perceptual re- sponse. They are intended to facilitate common input for both hardcopy and softcopy display devices. P-Values are intended to be independent of the specific class or characteristics of the display device.
B.18.2 IOD Modules
Table B.18.2-1. Presentation LUT IOD Modules
Module |
Reference |
Module Description |
SOP Common Information |
C.12.1 |
|
Presentation LUT |
C.11.4 |
|
B.19 Pull Print Request Information Object Definition
Retired. See PS3.3-2004.