ISABEL – Diagnostic Decision Support Tool Recent studies demonstrate that Isabel is: Validated –The correct diagnosis was suggested 90 - 96% of the time. Rapid – Manual entry of key findings takes less than 1 minute and results are displayed within 2-3 seconds. Easily accessible - Isabel is web accessible, remotely and via the wireless network. Read more about Isabel in our Scholarly Repository Isabel has greater validity than Google and is more rapid and accessible than previous diagnostic decision support tools.