During the last few years the medical IT infrastructure within clinical environments has changed dramatically by introducing a multiplicity of department-specific information systems. The major problem of this trend is the lack of a proper communication mechanism among these systems. How can information that is located outside the user`s current application be accessed? In order to answer this question, the author provides a general overview on IHE. Based on this, the reali-zation of an Integration Profile - Retrieve Information for Display - is illustrated in detail. Therefore the reader can easily follow the various steps that are necessary to realize any IHE Integration Profile. The end of the book offers information on publishing IHE Integration State-ments and achieving higher levels of IHE-Compliance. This book is primarily intended for architects and developers of medi-cal software applications and for anyone dealing with the topic IHE.