** Shares of 4DMedical 4DX.AX rise 21.6% to A$0.31, logs biggest intraday percentage gain since late September 2024

** Medical technology firm signs commercial contract with Lake Imaging, a part of Integral Diagnostics IDX.AX

** Under contract, co's lung imaging technology will be available for routine clinical use at Lake Imaging locations including North Melbourne, Geelong, Warrnambool, other

** About 1.6 million shares change hands, 1.5 times the 30-day average volumes of shares

** Stock down 46.9% this year, as of last close

(Reporting by Sherin Sunny in Bengaluru)

((Sherin.Sunny@thomsonreuters.com;))