The CDI 550 now "displays" DO2. The calculation has always been there for the calculation of VO2, just never displayed. For either calculation or display, you need to input flow. You can input flow manually to the CDI 550. Ideally, this should be input automatically, especially for continuous Goal Direct Perfusion.
If you have a Terumo pump, you can input the flow into the CDI 550 easily, just add a cable. If you have LivaNova pumps, you will have to spend a considerable amount of money for a module and a cable to input the flow to the CDI 550. I have S5's. I do wish Terumo had a flow probe-module-cable for use with LivaNova pumps. I also wish LivaNova or who ever had a competitor for the CDI 550. Competition is good.
Does anyone have another solution for automatically inputting flow from an S5 into the CDI?