Fig. 1: From serial sections to the 3D model.
From: Three-dimensional characteristics of the alveolar capillary network in infant and adult human lungs
a Serial sections of the parenchymal region were obtained from a 20-year-old lung and stained with toluidine blue (also done for a 30-day- and a 17-month-old lung). Scale bar = 2 mm. b The digitalized sections were segmented manually and colour-labelled. Red = vasculature; yellow/green = septal interstitium; blue/purple = airspace lumen; scale bar = 50 µm. c The 3D model of the vasculature (red) can be viewed in relation to the 2D representation. As such, it is possible to analyse the model by referring to the 2D sections. Scale bar = 50 µm.
