Homereddit Heart tissue can be imaged in real-time during keyhole procedures using a new optical ultrasound needle byNalam Peruvom -December 01, 2017 0 http://ift.tt/2ixqbl9 http://ift.tt/2j57oKO http://ift.tt/2j57oKO http://ift.tt/2BpFGz3 Tags: reddit Tech Facebook Twitter