Copyright 2002 Newport Instruments. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, or duplication of any material in this document for a fee or for commercial purposes are prohibited. For all other uses, please contact Robert C. Leif, Ph.D. at rleif@rleif.com The Registry of DICOM data elements in the Data Dictionary is a table with four fields: Name, Tag, Value Representation (VR), and Value Multiplicity (VM). The DICOM name maps to the XML element name. The Tag and VR are attributes each with a fixed (constant) value. The Value Multiplicity is handled by the XML minOccurs and maxOccurs constructs. The Tag is the unique value that identifies every DICOM data element. The DICOM Value Representations Table has the following fields: VR, Name, Definition, Character Repertoire, and Length of Value. The Value Representation is an enumerated type which includes a two letter abbreviation. It is the data type or class of the DICOM element. Most of theValue Representations are enumerated below. Create DICOM string types as bounded strings 1 to maxLength. The Token type which is derived from string was used, as it is appropriate for descriptions of one word to one paragraph. "The ·value space· of token is the set of strings that do not contain the line feed (#xA) nor tab (#x9) characters, that have no leading or trailing spaces (#x20) and that have no internal sequences of two or more spaces." (0008,0060) Modality CS 1