Research Article

Computer-Aided Quantification of Interstitial Lung Disease from High Resolution Computed Tomography Images in Systemic Sclerosis: Correlation with Visual Reader-Based Score and Physiologic Tests

Figure 1

Representative sequences of the OsiriX segmentation process. We have developed the pulmonary fibrosis fraction by the following formula: total HRT lung volume (−1.024 to −200) – nonfibrotic HRCT lung volume (−1.024 to –700) divided by total HRT lung volume (−1.024 to −200) multiplied by 100.
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