Fig. 8From: A semi-automatic technique to quantify complex tuberculous lung lesions on 18F-fluorodeoxyglucose positron emission tomography/computerised tomography imagesThese graphs represent the case-profiles of five different PTB patients and the changes of various auto-segmented PET-CT parameters at Dx, M1 and M6 (X axis). A straight line represents a cured outcome and the broken line indicates treatment failure. a Total glycolytic activity index. b Metabolic lesion volume as a percentage of total lung volume. c Vsoft (− 500 HU:− 300 HU) CT lesion volume as a percentage of total lung volume. d Vmedium (− 300 HU:− 100 HU) CT lesion volume as a percentage of total lung volume. e Vhard (> − 100 HU) CT lesion volume as a percentage of total lung volume. f Area of lung that shows abnormal density (> − 500 HU) and relative high uptake intensity as a percentage of total lung volumeBack to article page