** Shares of 4DMedical 4DX.AX rise as much as 6.5% to A$0.495, their largest intraday pct gain since Dec. 4

** Medical tech firm signs partnership agreement with the University of Chicago Medicine (UChicago Medicine)

** Agreement to allow UChicago Medicine clinicians to utilise co's portfolio of structural and functional lung imaging products

** 4DMedical says agreement is another critical step in U.S. expansion strategy

** Stock down ~33.6% YTD, including current session's moves

(Reporting by Nikita Maria Jino in Bengaluru)

((Nikita.Jino@thomsonreuters.com;))