Fig. 2

Highlighted are sagittal fused 68Ga-VQ/PET-CT (panel a), CT densitometry (b), and StratX® report (c) images from a participant (case 1) demonstrating an example of concordance of modalities in the upper lobe. Panel A demonstrates perfusion scanning with significantly reduced perfusion to RUL and RML (RUL 11%, RML 6%, RLL 43%). Panel B demonstrates CT appearance, with C illustrating destruction severity, with 79% of RUL, 63% of RML, and 48% of RLL voxels with measured density < − 910 HU)