** Pro Medicus rises as much as 2.7% to A$255.300; biggest intraday pct gain since Dec. 17

** Healthcare informatics firm announces seven-year contract worth A$30 mln ($18.8 mln) with U.S.-based Duly Health and Care $(DHC)$

** Says contract will see co's cloud-engineered Visage 7 Enterprise Imaging Platform implemented throughout DHC

** Stock up 159.5% YTD, as of last close

($1 = A$1.5997)

(Reporting by Roshan Thomas in Bengaluru)

((Roshan.Thomas@thomsonreuters.com))