Article Figures & Data
Figures
- FIGURE 1.
(A) Polar map with perfusion defect extent shown in black and significant reversibility within defect shown in white. Two possible expert system interpretations for patient are shown. System can be instructed to read study with high specificity for abnormality (B) or with high sensitivity (C). At high-specificity setting, only areas with greatest certainty of abnormality are included in impression. As is always true, higher sensitivity implies lower specificity, and vice versa. Setting might be changed depending on clinical question being asked. In these windows, which are displayed to user, each underlined word is a hyperlink that, when mouse-clicked, displays more text to explain interpretation.
- FIGURE 2.
Example from NRP showing part of 1 interface tab. This tab allows reader to define stress protocol. As hemodynamic values are entered, textual report is built up, as shown in window at bottom. This text will become part of final printed (and entered in database) report, if user wishes.
- FIGURE 3.
Screen within NRP, showing polar maps imported from nuclear medicine workstation. In each of 20 myocardial segments, perfusion scores that were originally assigned are shown in boxes with white backgrounds. Numbers in shaded boxes are those that physician using NRP has decided to change.
- FIGURE 4.
(A) Client-server schematic. The 4 illustrated types of information transfer are database query (1), download of software (2), download of database data (3), and download of images (4). SQL database on server is for storage of patient records. Image viewer may be as simple as a plug-in for a Web browser or may be an independent program such as Osiris (University Hospital of Geneva, Geneva, Switzerland). Likewise, Web interface may be a standard Internet browser or a more specialized program. (B) Environment in which software server exists. Hospital information system (HIS) and radiology information system (RIS) computers may impose their own security layers and information format requirements. In addition, nuclear medicine computer must be able to provide images in standard format, which at present means either DICOM or Interfile.
- FIGURE 5.
General scheme for JaRRViS (previously known as JaRVis). JAR refers to Java archive, which contains applet and associated files. cgi means common gateway interface and refers to small programs that run on server machine, often for handling user interaction.
- FIGURE 6.
JaRRViS report, displayed within Web browser window. This portable file could be displayed on any computer with Web-browser software.
