Figure 3

Patients flow diagram. We obtained informed consent from 50 patients. Two patients were excluded because they were accidentally measured LFCT before system registration. After registration, 48 patients were measured LFCT. Two patients were excluded because of the device system disorder. Finally, we evaluated LFCT from 46 patients; among them, 2 patients have no measurable LFCT. LFCT: lung to finger circulation time.