difference is too small that means the patient is not consuming enough oxygen are you going to do something about it otherwise the patient might wake up from the surgery bring that so we've tested seven healthy volunteers that reach so2 is very similar to the expected range so this is very good news for us as a initial test the next natural step is to move this into the war to work on real patients let me move on to the microscopy domain unlike the photoacoustic CT you will have to use math to form an image you know you have