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The KMeD project has completed. The KMeD website now serves as a historical record of the findings and accomplishments of the KMeD team. A part of the National Science Foundation Scientific Database Initiative Grant IRI 9116849 Last updated on June 12th, 2001 |
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Many medical images possess temporal and evolutionary semantics: bones and
other medical objects grow, fuse, and divide over time. Our temporal
evolutionary data model (TEDM) attempts to capture these changes into a
form that can be modeled, stored, displayed, and queried.
Query 2Retrieve cases where a Stage I metaphysis of the second distal phalange has fused from a Stage C epiphysis ad metaphysis.Query 2 makes use of the hand data model that we developed, shown below (click on the figure for an expanded view). 
The screenshots below illustrate Query 2 as expressed in KMeD PICQUERY+. Because Query 2 refers to three distinct objects (a Stage I metaphysis, a Stage C epiphysis, and a Stage C metaphysis), three tables are required, one for each object. Note that the only predicates that are necessary are entered into the Stage I metaphysis's table, which shows how the Stage I metaphysis is related to the Stage C epiphysis and metaphysis. 
The results of this query are evolutionary chains from the original objects to their final objects, showing any fusion, fission, or evolutionary changes. Such an evolutionary chain is shown below (a larger image is available by clicking on the one below).  |
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