** Artrya AYA.AX jumps as much as 12.8% to A$3.89, highest since November 12
** Stock marks biggest intraday pct rise since November 20
** Medical technology firm signs commercial agreement for use of its Salix platform with U.S.-based Northeast Georgia Health System
** Agreement for three years with minimum value of $300,000 for SalixCoronary Anatomy platform, with additional fee-per-scan revenue from Salix Coronary Plaque module, Salix Coronary Flow module
** AYA last up 9.6%; surges 613.2% YTD
(Reporting by Anjali Singh in Bengaluru)
((anjali.singh2@thomsonreuters.com;))