** Shares of Australia's 4DMedical 4DX.AX rise as much as 9.5% to A$2.43, their highest since October 6
** Medtech firm receives Canadian regulatory approval for CT:VQ, CT-based lung ventilation–perfusion imaging technology
** Approval enables immediate commercial deployment of CT:VQ across Canada through strategic partnership with Philips
** About 3.4 million shares change hands, nearly 1.1x 30-day average
** 4DX has gained more than five-fold in value so far this year
(Reporting by Keshav Singh Chundawat in Bengaluru)
((Keshav.singhchundawat@thomsonreuters.com))