Volumetric computed tomography (CT) imaging provides a method of acquiring a 3-Dimensional view of lung soft tissue. The data captured in these images allows several methods of assessing the state of health of the lung. This information can prove valuable in early diagnosis of conditions where lung tissue is damaged, before external symptoms are expressed. The imaging data is also necessary for modeling lung tissue mechanics. This paper presents some analysis techniques for lung soft tissue, and uses these techniques to compare healthy lungs of young and elderly subjects.