An overview of the latest progress of the DICOM standard from the recent base standard meeting


complete in standard.

RT Radiation Records

The SOP Classes in this document are defined to record how a Radio Therapy treatment was performed.

The following IODs are introduces:

  • RT Radiation Record Set Storage
  • RT Radiation Salvage Record Storage
  • Tomotherapeutic Radiation Record Storage
  • C-Arm Photon Electron Radiation Record Storage
  • Robotic-Arm Radiation Record Storage

This comprises acquired machine values, measured dose values, overrides, etc.

In addition, recording of a manual implementation of a radiation is covered.

This supplement is based on the real-world model and specifications defined in supplement 147. References, definitions etc. not present in this supplement can be found in supplement 147. Additional information is found in Supplement 175 and 176.

Supplement 199 was voted to go out for Letter Ballot.

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Neurophysiology Waveform

This Supplement introduces SOP Classes for storage of neurophysiology waveforms by adding the related neurophysiology IODs and the necessary neurophysiology waveform context groups.

This Supplement adds the following SOP Classes:

  • To store routine electroencephalography (EEG) data recording the electrical activity of the brain collected on the skull surface using electrode positions of the international 10/10 or 10/20 localization scheme.
  • To store electromyography (EMG) data recording the electrical activity of skeletal muscles.
  • To store electrooculography (EOG) data collected near the eyes recording eye movement.
  • To store electroencephalography (EEG) data acquired during a polysomnography (PSG) study.
  • To store respiratory data recorded using more than a single channel.
  • To store information about a patient's position continuously.

Supplement 217 was voted to go out for Letter Ballot.

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XA Protocols

This Supplement defines a pair of storage SOP Classes to distribute defined XA protocols and to record performed XA protocols:

  • XA Defined Procedure Protocol Storage SOP Class, which includes acquisition, reconstruction and storage tasks.
  • XA Performed Procedure Protocol Storage SOP Class that describes the values actually used in a performed procedure.

The SOP Classes address details including:
  • patient preparation & positioning
  • equipment characteristics
  • acquisition technique
  • reconstruction technique
  • preliminary image handling such as filtering, enhancement
  • results data storage (auto-sending)

The primary goal is to set up the acquisition (and reconstruction) equipment, not to script the entire behavior of the department, or the angiographic suite.

Methods of specification of tube current modulation (and other technical features) vary between vendors and models and are not addressed in standard DICOM data elements.

It is expected that the vast majority of protocol objects will be specific to a certain model and version of acquisition equipment.

Supplement 212 was voted to go out for Public Comment.

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This Supplement introduces a new IOD and a new storage SOP for encoding and storing dermoscopic images.

Dermoscopy is a diagnostic technique that enables visualization of the morphological structures of the skin.

Dermoscopy (also known as dermatoscopy and epiluminescence microscopy) is a non-invasive, in vivo skin examination that has demonstrated to be an important aid in the early recognition of malignant melanoma and other skin tumors.

Dermoscopy is also used for disease conditions (e.g. inflammatory) other than skin cancer.

A dermoscope is hand-held device that consists of magnifier and light source.

Emitted light can be polarized light or non-polarized. Dermoscopy using non-polarized light require direct contact between the skin and the device.

For direct contact dermoscopy an immersion medium is placed on the skin surface and a glass plate on the dermoscope is placed directly against the skin.

Non-contact dermoscopy does not require the dermoscope to be in contact with the skin surface.

Three techniques are used in dermoscopy:

  • polarized non-contact dermoscopy
  • polarized contact dermoscopy
  • non-polarized contact dermoscopy

Supplement 221 was voted to go out for Public Comment.

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Cone Beam CT in RDSR

This Supplement creates a structured report with the necessary flexibility to address cone-beam CT acquisitions.

This generic radiation description can represent previously addressed acquisition types:

  • Angiography
  • Mammography
  • CR/DR
  • CT

Radiotherapy treatment dose and radiopharmaceutical dose are out of scope.

Supplement 214 will be further presented and discussed with the Base Working Group in a coming meeting before Public Comment voting.

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