1053-2 Cath-Lab Assistant: Integrated Image Analysis and Relational Database Program

Abstract

Cardiac catheterization techniques deal with large amount of image data from which quantitative parameters are extracted. Our program provides relational database organization and management functions for both images and measurement data. In addition, it integrates database with our previously developed image analysis programs for intravascular ultrasound (IVUS) and coronary angiography. The program runs in Microsoft Windows environment and does not require specialized imaging hardware. Program consists of three functional modules: image database system, IVUS contour extraction/analysis module and coronary angiography contour extraction/analysis module, Image database system provides image retrieval, storage and display together with extracted quantitative data. Each database record includes data on patient administration, medical history and noninvasive test results. User is provided with browse and search controls for database navigation, as well as with query by example and lists and reports generation. Analysis programs are incorporated into the database through OLE (Object Linking and Embedding) technique, which enables user to launch appropriate image analysis program simply by clicking the mouse over the chosen image. Extracted analysis data are automatically stored in the appropriate database record. Furthermore, any other image processing/analysis Windows program that supports OLE and can act as OLE server may be linked with the database by simple Clipboard cut and paste operations. All images and data can be exported to other Windows applications (text processors, spreadsheets, statistical and data presentation software). In practical testing the program proved to be user friendly, interactive and flexible. It was particularly useful for integration of both images and quantitative data obtained by coronary angiography and by IVUS, being helpful in the validation of the latter technique, and providing better insight into the extent and severity of coronary arteriosclerotic disease.