COVID-19(16) Result(13) Patient(11) COVID-19 pandemic(10) investigated(10) lung(9) Accuracy(9) Pneumonia(9) patients(8) Segmentation(7) dataset(7) quantification(7) evaluated(7) automated(7) volumetric(7) affected(7) Ground-glass opacities(6) CT scans(6) CT(6) machine learning(6) Spread(6) Analysis(6) methodology(5) transfer(5) effective(5) CNN(5) Computed tomography(5) pandemic(5) progression(5) conducted(5)