L Hemodynamics Report Structure (Informative)
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# L Hemodynamics Report Structure (Informative)

The Hemodynamics Report is based on TID 3500 “Hemodynamics Report”. The report contains one or more measurement containers, each corresponding to a phase of the cath procedure. Within each container may be one or more sub-containers, each associated with a single measurement set. A measurement set consists of measurements from a single anatomic location. The resulting hierarchical structure is depicted in Figure L-1.

Figure L-1. Hemodynamics Report Structure

The container for each phase has an optional subsidiary container for Clinical Context with a parent-child relationship of has-acquisition-context. This Clinical Context container allows the recording of pertinent patient state information that may be essential to understanding the measurements made during that procedure phase. It should be noted that any such patient state information is necessarily only a summary; a more complete clinical picture may be obtained by review of the cath procedure log.

The lowest level containers for the measurement sets are specialized by the class of anatomic location - arterial, venous, atrial, ventricular - for the particular measurements appropriate to that type of location. These containers explicitly identify the anatomic location with a has-acquisition-context relationship. Since such measurement sets are typically measured on the same source (e.g., pressure waveform), the container may also have a has-acquisition-context relationship with a source DICOM waveform SOP Instance.

The "atomic" level of measurements within the measurement set containers includes three types of data. First is the specific measurement data acquired from waveforms related to the site. Second is general measurement data that may include any hemodynamic, patient vital sign, or blood chemistry data. Third, derived data are produced from a combination of other data using a mathematical formula or table, and may provide reference to the equation.

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