New imaging technique monitors brain blood flow during surgery

A new imaging technique allows real-time monitoring of brain blood flow during surgery, potentially preventing permanent damage. Researchers developed sinusoidal intensity modulation speckle imaging (SIMSI) using standard cameras to noninvasively track blood flow across a wide surgical field. This method provides quantitative measurements, unlike previous techniques. The technology, developed by UT Austin, builds on laser speckle contrast imaging and could also aid in cardiac surgery, reconstructive procedures, and stroke care research.