Sup240
Heightmap Segmentation
This Supplement introduces a new Heightmap
Segmentation IOD and SOP Class.
The Heightmap Segmentation IOD follows the current
enhanced multi-frame image data
architecture.
For data management purposes, e.g., with Media
Exchange, Heightmap Segmentation SOP Instances may
be treated similarly to other segmentation
images.
While intended to be broadly applicable for a
variety of medical imaging domains, the initial use
case is in ophthalmic tomography (OPT) for
representing segmentation of retinal
layers.
This Supplement also retires the current Ophthalmic
Optical Coherence Tomography En Face Image IOD,
which requires use of Surface Segmentation SOP
Instances to specify a retinal layer, and replaces
it with a new En Face Image IOD that allows
Heightmap Segmentation SOP Instances (or other,
future, SOP Classes).
The reference to the segmentation object in the En
Face Image object enables traceability of the
processing steps that produced the image.
It is not necessarily the case that a receiving
application could reproduce the En Face Image from
the original source Ophthalmic Tomography Image(s)
and the referenced segmentation object.
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Sup239
Waveform Annotation SR
This supplement introduces SOP Classes for storage and
exchange of waveform annotations. It applies to all
modalities in which waveform objects are created and
applications used to review them.
Waveform Annotations annotations can be stored in the
waveform object itself expressing physical or
environmental circumstances noted by the recording device
at recording time.
The new IOD can be used to store additional clinical
information added at recording time or later provided
either by a human reviewer (for example a neurologist or a
technologist) or by an automated analysis software.
This supplement:
- Adds a SOP Class to store observations and measurements in a Waveform Annotation SR.
- Defines a new Root Template derived from TID 1500, a waveform analogy to TID 1600 Image Library, and some included templates to store annotations as codes or free text and 90 measurements.
- Defines the Context Groups used in these Templates.
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Sup228
DICOMweb API for Server Volumetric Rendering
This supplement introduces Volumetric Rendering web
services and a Volumetric Rendering Protocol IOD to
enable Volume Rendering (VR), Maximum Intensity
Projection (MIP), and Multiplanar Planar Rendering
(MPR) without having to specify the numerous and
complex parameters required to do so.
Web services enable a user agent to initiate
server-side 3D volumetric rendering by specifying
Query Parameters and/or referencing a Volumetric
Rendering Protocol, or a Volumetric Presentation
State.
The Resources introduced in the Supplement derive
Query Parameters from Volumetric Presentation State
attributes while maintaining alignment with current
DICOMweb Studies Rendered Resources.
The Volumetric Rendering Protocol IOD is a
Non-Patient Instance within the Defined Procedure
Protocol IOD family.
Its primary function is to facilitate the creation
of predefined renderings, by establishing criteria
and organizing image set inputs for rendering, and
specifying Volumetric Rendering parameters, such as
rendering algorithms, geometry, color, shading, and
lighting.
This supplement will be further presented and
discussed in the base standard group before going
out for Letter Ballot.
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Sup244
Frame Deflate Transfer Syntax
This Supplement addes a new Transfer Syntax primarily for single bit
segmentation encoding, which is otherwise not well supported.
There is a need to be able to store and transfer
encoded single frames (such as for DICOMweb) rather than the entire
dataset for those applications where only selected frames are required
(such as for selected tiles at selected resolutions for whole slide
images, or multi-organ segmentation of large volumetric CT or MR
datasets).
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Sup242
Ultrasound Fetal Cardiac SR Extensions
This supplement to the DICOM Standard introduces new
Structured Report template content to address fetal cardiac
assessments beyond those addressed by Sup78 which
introduced TID 5220 "Pediatric, Fetal and Congenital
Cardiac Ultrasound Reports".
Current clinical practice and technology for fetal
cardiac assessments using ultrasound have progressed
since Sup78 was published.
Practice now includes many more measurements beyond
visual assessment.
For example:
- Measurements of the ventricles, atria, septa and valves
- Measurements of fetal arrhythmia and hemodynamics
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Sup232
JPEG XL
This supplement adds several JPEG XL Transfer Syntaxes.
- JPEG XL has demonstrated improved compression of color images
- Existing Baseline JPEG images can be transcoded without additional loss to smaller JPEG XL images (particularly useful for WSI)
- Supports multi-frame encoding more effectively than gif, the only other multiframe rendered format
- JPEG XL has both lossless and lossy modes that can be natively rendered in some browsers
- Has flexible encoding options (including > 8 bits, single bit)
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Sup241
Structural Heart SR Template
This supplement introduces SR templates for
Structural Heart Procedures.
These procedures involve interventions aimed at
addressing various conditions or abnormalities
affecting the structures of the heart, excluding the
coronary arteries.
Unlike open-heart surgery, these interventions are
characterized by their minimally invasive nature or
catheter-based approach.
Periprocedural imaging follows a consistent pattern
of three phases: pre-operative assessment,
intraprocedural assessment, and follow-up.
Throughout all three phases, echocardiography
emerges as the primary imaging modality.
X-ray angiography is predominantly utilized for
intraprocedural guidance.
CT may also find application in the pre-operative
assessment and follow-up.
The templates proposed in the supplement are based
the Simplified Adult Echocardiography Templates
(root TID 5300), modified to support multimodality
image acquisition.
Structural Heart Procedures include:
- TAVI: Transcatheter Aortic Valve implantation
- TAVR: Transcatheter Aortic Valve Replacement
- TTVP: Transcatheter Tricuspid Valve Procedure
- TTVR: Transcatheter Tricuspid Valve Repair
- TEER: Transcatheter Edge-to-Edge Repair
- TMVr: Transcatheter Mitral Leaflet Clip Procedure
- TMVR: Transcatheter Mitral Valve Replacement
- LAAC: Left Atrial Appendage Closure
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Sup236
Waveform Presentation State
This supplement introduces Service Classes for
storage and exchange of presentation information for
DICOM waveform objects by adding a Waveform
Presentation State IOD. The Waveform Presentation
State object stores the display montages,
i.e. calculative combinations of recorded channels,
display filter and other display settings.
This supplement adds
- a new Waveform Presentation State IE.
- a SOP Class to store Waveform Presentation States and the related Modules.
In cardiology, technicians annotate previously recorded waveforms (e.g. from home monitoring Holter ECG) and highlights areas of interest. This information is essential input for the cardiologist who reviews the ECG and finally provides the report.
This supplement will be further presented and discussed in the base standard group before going out for Public Comments.
This supplement will be further presented and discussed in the base standard group before going out for Public Comments.
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Sup233
Patient Model Gender Enhancement
This supplement adds a comprehensive gender logical
model for sex and gender representation in
DICOM.
The goal is to make the distinction between
phenotypical sex and the patient's social context
gender clear.
The approach is to add new optional sequences to the
Patient Study Module.
The DICOM model extensions are consistent with the
work in HL7 and FHIR:
- The HL7 Gender Harmony Project created a logical
model to describe the information needed in an
electronic record to support proper care for gender
and sex diverse patients.
- The HL7 model includes both clinical information
and social information.
This supplement also updates Patient Sex (0010,0040)
description and some CIDs to match the HL-7 updated
definition.
This supplement will be further presented and
discussed in the base standard group before going
out for Public Comments.
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Sup245
RDSR Informative Annex
This Supplement provides explanatory information on
the creation and usage of RDSR (traditional and
enhanced) within Angiography, Mammography,
Radiography, CT, Dentistry modalities etc.
This supplement excludes Radiopharmaceutical and
Patient Radiation Dose SR.
Given the modality-specific content definition of
the RDSR, and the many different types of system
configurations existing in the field, it becomes
challenging for the manufacturers to have a clear
understanding of the precise requirements for each
type of device.
The purpose of this supplement can be summarized as
follows:
- Give more information beyond the definitions
in PS 3.16: describe real-world scenarios of
typical equipment configurations, provide
examples and encoding guidelines;
- Indicate restrictions on the applicable
scenarios (defined terms recommended, values
ranges, recommended presence of Content
Items);
- Promote usage of optional Content Items
under particular scenarios;
- Assess the applicability for some
conditional Content Items under particular
scenarios;
The scope of the proposed Supplement includes:
- An overview of the landscape of different
modalities and types of equipment
configuration, from simple legacy CR to
modern integrated Angio equipment.
- Guidance on how to use the different TIDs
and Content Items depending on the modality,
equipment types and configurations.
This supplement will be further presented and
discussed in the base standard group before going
out for Public Comments.
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