Related Experiment Video
Updated: May 9, 2026
03:38
Unilateral Lung Volume Analysis Using Micro-CT for Enhanced Assessment of Pulmonary Fibrosis in Preclinical Models
Published on: June 20, 2025
Quantitative 3D micro-CT imaging of human lung tissue
M Kampschulte1, C R Schneider, H D Litzlbauer
1Department of Radiology, University Hospital Giessen and Marburg, Gießen. marian.kampschulte@radiol.med.uni-giessen.de
Rofo : Fortschritte Auf Dem Gebiete Der Rontgenstrahlen Und Der Nuklearmedizin
|July 27, 2013
Summary
Micro-computed tomography (micro-CT) is feasible for analyzing human lung tissue changes. This imaging technique quantifies soft tissue, air, and vascular fractions in fibrotic and emphysematous lungs, aiding disease assessment.
Area of Science:
- Pulmonary Medicine
- Medical Imaging
- Pathology
Background:
- Human lung diseases like fibrosis and emphysema cause significant structural changes.
- Accurate volumetric and morphologic assessment of these changes is crucial for diagnosis and research.
- Existing imaging techniques may have limitations in resolving fine structural details of diseased lung tissue.
Purpose of the Study:
- To evaluate the feasibility of micro-computed tomography (micro-CT) for quantitative analysis of human lung specimens.
- To assess volumetric and morphologic alterations in soft tissue, airways, and vasculature in fibrotic and emphysematous lungs.
- To compare micro-CT findings with histological data for validation.
Main Methods:
- Human lung specimens (fibrosis, emphysema, controls) were analyzed using micro-CT.
- Intravascular contrast enhancement was used to assess vascular volume fraction.
- Osmium staining and fixation were employed for soft tissue and air fraction quantification.
- Synchrotron-based micro-CT was utilized for high-resolution 3D reconstruction of lung acini.
Main Results:
- Micro-CT revealed a significant increase in soft tissue and decrease in air fraction in fibrotic lungs compared to controls.
- Emphysematous lungs showed a significant increase in air fraction and decrease in soft tissue.
- A significant reduction in vascular volume fraction was observed in fibrotic lungs.
- Successful 3D reconstruction of lung acini was achieved in non-diseased tissue but not in diseased lungs.
Conclusions:
- Micro-CT is technically feasible for obtaining quantitative volumetric and morphological data from diseased and non-diseased human lung specimens.
- The technique can differentiate structural changes associated with lung fibrosis and emphysema.
- Further optimization may be needed for high-resolution 3D reconstruction of diseased lung acini.
