Fig. 7From: Visual and quantitative assessment of HRCT pulmonary changes in idiopathic interstitial pneumonia with PFT correlationA 38-year-old female patient, presented with collagen vascular disease and progressive dysnea. Diagnosed as LIP. HRCT axial lung and color-coded density images showing bilateral fairly symmetrical subpleural ground glass opacification and reticulation with few scattered cysts. Color-coded images allowed better evaluation of areas reticulation and ground glass (green color) for HU above − 750 and blue color for normal lung ranging between − 750 and − 900 HUBack to article page