Fig. 2: Ultrasound recording with time windows.
From: Effects of tilt on cerebral hemodynamics measured by NeoDoppler in healthy neonates
Upper panel: Unsupervised cluster analysis revealed five distinct, initial responses to tilt (A–E). The dotted lines indicate the tilt. The tilt was performed within 2 s. Colored lines are individual recordings and the black lines are cluster means. Lower panel: A typical recording of blood flow velocity (BFV) per heartbeat during the test. The four gray boxes show the time segments (S1–S4) used for further analysis, and the green box the time window used for cluster analysis. The neonate’s position is illustrated by the silhouettes.
