Figure 6.

Artifactual pulse oximetry signals during nonrhythmic motion(i.e., gross arm motion; top panel) and during Parkinsonian tremor (lowerpanel). Solid line denotes Masimo signal extraction technology(SET^™), aimedat minimizing spurious pulse oximetry readingsdue to motion artifact; dashed line denotes conventional pulse oximetry.Spurious changes in S_pO₂ were less with MasimoSET^™ than with conventional pulse oximetry. Published withpermission [46].