Figure 2 | Scientific Reports

Figure 2

From: Validation of CT-based ventilation and perfusion biomarkers with histopathology confirms radiation-induced pulmonary changes in a porcine model

Figure 2

Summary of the perfusion imaging-based measurements. (A) Axial image from one frame of the dynamic contrast-enhanced CT showing an ROI placed in a vessel. (B) Mean Hounsfield Units (HU) value in the ROI from (A) across different frames of the dynamic CT. Each graph point represents a separate image acquisition. (C) Example of the contours used for vessel and non-vessel lung parenchyma dose binned measurements. (D) Measurement of peak HU change inside vessels. (E) Measurement of baseline HU outside vessels. (F) Area under the curve measurement to assess total contrast in the vessel. Images were adapted from our previous works18,19 and are modified and reprinted with permission.

Back to article page