DICOM PS3.3 2019a - Information Object Definitions

A.16 X-Ray RF Image IOD

A.16.1 XRF Image IOD Description

The focus for this X-Ray RF Image IOD (XRF IOD) is to address the requirements for image transfer found in general Radiofluoroscopic applications performed on a table with a column. For applications performed on X-Ray RF acquisition systems that support a Patient-Based Coordinate System with cranial/caudal, LAO/RAO angles, etc. the XA Image IOD may be used.

Note

An example of a case where the XA IOD may be preferred to the RF IOD are RF acquisition system equipped with an X-Ray source and an image Receptor positioned by what is generally called a c-arm (e.g., Interventional Procedures, Myelography, Biopsy, and Neurology).

This Section defines the Information Object for X-Ray Radiofluoroscopic Imaging that includes those Attributes and Information Objects necessary for the interchange of digital X-Ray RF Image data. The XRF IOD is applicable to X-Ray acquisition systems equipped with an image receptor whose plane is parallel to the table plane where the Patient is. This Table has in general the ability to be tilted. Furthermore the X-Ray source may be supported by a column that can be angulated to adjust the incidence of the X-Ray beam on the image receptor plan. An equipment based coordinated system is used to track these angles.

Note

  1. For the purpose of X-Ray Radiofluoroscopy, this IOD can be used to encode a single-frame image, or a cine run encoded in a single multi-frame image.

  2. A typical Study might include all the images generated between the time a Patient gets on and gets off the procedure table. As several separable diagnostic or therapeutic processes may occur during a single Study, a Series may be defined as comprising a set of images (single or multi-frame) associated with one such process within a Study.

DICOM PS3.3 2019a - Information Object Definitions